CH719450A2 - Watch movement comprising two regulating organs. - Google Patents

Abstract

The invention relates to a watch movement (1) comprising: - a differential (11) comprising an input, a first output and a second output, - a motor member (12), in particular a motor member comprising one or more barrels, in connection kinematic with the input, – a first regulating member (13) in kinematic connection with the first output via a first gear train (14) controlling a first watch function, and – a second regulating member (15) in kinematic connection with the second output via a second gear train (16) controlling a second watch function different from the first watch function.

Description

[0001] The invention relates to a watch movement. The invention also relates to a timepiece comprising such a watch movement. The invention finally relates to a method of operating such a watch movement or such a timepiece.

[0002] In order to improve the timing precision of mechanical chronographs, it is known to use high frequency oscillators having a frequency higher than that of those commonly used to count and display the current time. However, these high frequency oscillators consume a lot of power. It seems interesting to activate them only when necessary. However, when the high frequency oscillators are activated, there is a transient phase of oscillator operation during which the timing is not optimal. It therefore appears that it is not desirable for this phase to coincide with use of the oscillator to carry out a time measurement.

[0003] The aim of the invention is to provide a watch movement improving the systems known from the prior art and to resolve the problems mentioned. In particular, the invention proposes a watch movement whose function precision and energy management are improved.

[0004] According to the invention, the watch movement comprises: - a differential comprising an input, a first output and a second output, - a motor member, in particular a motor member comprising one or more barrels, in kinematic connection with the input , – a first regulating member in kinematic connection with the first output via a first gear train controlling a first watchmaking function, and – a second regulating member in kinematic connection with the second output via a second gear train controlling a second watchmaking function different from the first function watchmaker.

[0005] The first regulating member may comprise a first oscillator oscillating at a first frequency, in particular a frequency less than or equal to 10 Hz or less than or equal to 5 Hz, typically oscillating at 3 Hz, and/or the second regulating member may comprise a second oscillator oscillating at a second frequency, in particular a frequency greater than or equal to 3 Hz or greater than or equal to 5 Hz, typically oscillating at 10 Hz.

[0006] The first frequency may be lower than the second frequency.

[0007] The first watchmaking function may be the counting of the current time and/or the second watchmaking function may be the counting of a chronograph function, in particular the driving of a chronograph counting chain via a clutch.

[0008] The differential may comprise: – a planetary mobile constituting the input, – a first planetary mobile constituting the first output, and – a second planetary mobile constituting the second output.

[0009] The first planetary wheel may comprise a first wheel with external teeth meshing with at least one first satellite and/or the second planetary wheel may comprise a second wheel with external teeth meshing with at least one second satellite.

[0010] The watch movement may include a member for activating/deactivating the second regulating member, for example a stop-second.

[0011] The watch movement may include a member for activating/deactivating the clutch of the chronograph counting chain.

[0012] The watch movement may be able to operate selectively according to a first operating mode or according to a second operating mode, the watch movement comprising a power reserve indicating device, the power reserve indicating device being configured or arranged to indicate or count down the power reserve in different ways depending on whether the watch movement operates according to the first mode of operation or according to the second mode of operation.

[0013] According to the invention, a timepiece, in particular a wristwatch, comprises a watch movement as defined above.

[0014] According to the invention, a method governs the operation of a watch movement as defined above or of a timepiece as defined above. The method comprises iterations of the following steps: – activation of the second regulating member by a first action of a user, then – activation of the second watch function by a second action of the user, in particular a second action causing coupling of the second gear train and a counting chain of the second watch function by a clutch.

[0015] The operating method may include: second watchmaking function at the level of a clutch, then – deactivation of the second regulating organ by a fourth action of a user.

[0016] The operating method may include automatic deactivation of the second regulating member when a power reserve threshold is crossed downwards.

More generally, objects of the invention are defined by the appended claims.

[0018] The accompanying drawings represent, by way of example, an embodiment of a timepiece. Figure 1 is a partial view of one embodiment of a timepiece. Figure 2 is a sectional view of part of the embodiment of the timepiece, the section passing through the axis of a differential. Figure 3 is a schematic view of the embodiment of the timepiece comprising a power reserve indication device. Figure 4 is a schematic view of a variant of the embodiment of the timepiece comprising another power reserve indication device. Figure 5 is a schematic view of an embodiment of an automatic activation/deactivation member of a regulating member. Figure 6 is a partial schematic view of a first variant of the embodiment of an automatic activation/deactivation member of the regulating member. Figure 7 is a partial schematic view of a second variant of the embodiment of an automatic activation/deactivation member of the regulating member. Figure 8 is a schematic view of the embodiment of a member for automatic activation/deactivation of the regulating member in an activated state. Figure 9 is a schematic view of the embodiment of a member for automatic activation/deactivation of the regulating member in a deactivated state. Figure 10 is a view of a tourbillon and a first stop mechanism in which a tourbillon stop is in the released position. Figure 11 is a view of the tourbillon and the first stopping mechanism in which the tourbillon stop is in the engaged position. Figure 12 is a view of the tourbillon and the first stopping mechanism in cutaway perspective. Figure 13 is a view of a tourbillon and a second stopping mechanism in which a stop-cage is in the released position. Figure 14 is a view of the tourbillon and the second stopping mechanism in which the stop-cage is in the engaged position. Figure 15 is a view of the tourbillon and the second stopping mechanism in cutaway perspective.

[0019] One embodiment of a timepiece 100 is described below in detail with reference to the figures. The timepiece 100 is for example a watch, in particular a wristwatch. The timepiece 100 comprises a watch movement 1, intended to be mounted in a case or a timepiece box in order to protect it from the external environment. The watch movement 1 can be a mechanical movement, in particular an automatic movement.

The watch movement 1 comprises: - a differential 11 comprising an input 113, a first output 111 and a second output 112, - a motor member 12, in particular a motor member comprising one or more barrels, in kinematic connection with the input 113, - a first regulating member 13 in kinematic connection with the first output 111 via a first gear 14 controlling a first watch function, and - a second regulating member 15 in kinematic connection with the second output 112 via a second gear 16 controlling a second watchmaking function different from the first watchmaking function.

The first regulating member comprises a first oscillator 13 oscillating at a first frequency, in particular a frequency less than or equal to 10 Hz or less than or equal to 5 Hz, typically oscillating at 3 Hz. The first regulating member may comprise an oscillator of the sprung balance type and a first escapement, notably a Swiss lever escapement. The first regulating member can be mounted movable, for example in the case of a tourbillon.

The second regulating member comprises a second oscillator 15 oscillating at a second frequency, in particular a frequency greater than or equal to 3 Hz or greater than or equal to 5 Hz, typically oscillating at 10 Hz. The second regulating member may comprise a second oscillator of the sprung balance type and a second escapement, in particular a Swiss anchor escapement. The second regulating member can be mounted movable as for example in the case of a tourbillon.

The first and second frequencies are advantageously different frequencies, in particular the first frequency is advantageously lower than the second frequency.

Preferably, the first watch function is counting the current time. To do this, the first cog 14 comprises mobiles integral with elements for indicating or displaying the current time, such as hands, in particular hands intended to cooperate with one or more limbs provided on a dial of the part clockwork, to display hours and minutes and possibly seconds or any other function intended to be driven by means of the current time such as for example a time zone display, lunar phase, a date or any other derived function of the current time.

Preferably, the second watchmaking function is the counting of a chronograph function, in particular the driving of a chronograph counting chain 19 via a clutch 18. To do this, the second gear train 16 is linked to a chronograph mechanism or to a chronograph module comprising the counting chain 19. The counting chain advantageously comprises mobiles integral with elements for indicating or displaying a timed time, such as hands, in particular needles intended for cooperate with one or more limbs provided on the dial of the timepiece, to display the timed seconds and the timed minutes and fractions of timed seconds, such as tenths of a second or half-tenths of a second.

Consequently, the first cog 14 and the second cog 16 are independent. Thus, at least at certain times of operation of the watch movement, for example for several seconds, minutes or hours, the first gear is animated while the second gear is stopped or the second gear is animated while the first gear is stopped. In particular, the first cog 14 and the second cog 16 are not linked or synchronized by the same oscillator or resonator (either by a common oscillator or resonator).

As a result again, the first regulating member 13 and the second regulating member 15 are independent. In particular, the first regulating member 13 and the second regulating member 15 are not linked or synchronized by the same escapement or a cog (or are not linked or synchronized by a common escapement or a common cog).

Advantageously, the watch movement or the timepiece comprises a member 20 for activating/deactivating the clutch 18 of the counting chain 19 of the chronograph. This member 20 makes it possible to control the coupled/uncoupled state of the clutch 18 and thus to control the coupling or decoupling of the second gear train 16 and the counting chain 19 of the chronograph. The member 20 is for example a push button allowing a change of state of the clutch each time the user presses the push button. This push button is preferably a start/stop push button of a chronograph.

The motor member 12 may comprise one or more barrels. In the case of several barrels as shown in Figure 1 (two barrels), the barrels can be mounted in series or in parallel.

Preferably, the differential 11 comprises: – a planetary carrier mobile 113 constituting the input 113, – a first planetary mobile 111 constituting the first output 111, and – a second planetary mobile 112 constituting the second output 112, as shown in Figure 2.

Advantageously, the first planetary mobile 111 comprises a first wheel 1112 with external teeth meshing with at least one first satellite 1132 pivoted on the planetary carrier mobile 113.

Advantageously, the second planetary mobile 112 comprises a second wheel 1122 with external teeth meshing with at least one second satellite 1133 pivoted on the planet carrier mobile 113.

[0033] However, the structure of the differential 11 can also be different as shown in Figure 3. In this embodiment, for example, the differential comprises: - a planetary mobile 113 constituting the input 113, - a planetary carrier 111 constituting the first output 111, and – another planetary mobile 112 constituting the second output 112.

[0034] Without departing from the scope of the invention, the differential(s) used may be of another type than that shown in the figures, such as a conical differential or, depending on the torques involved, a ball differential, or any other mechanism allowing the same functions to be performed.

[0035] Very advantageously, the watch movement comprises a member 17 for activating/deactivating the second regulating member 15, for example a stop-second 17. Indeed, depending on its state, the member 17 allows: activate the second regulating member, that is to say to let the second oscillator driven by the motor member 12 via the second cog 16 oscillate, or – to deactivate the second regulating member, that is to say stop the oscillations of the second oscillator.

[0036] To produce this deactivation, the activation/deactivation member 17 can act by friction and/or by obstacle: – on the second regulating member, in particular on the balance of the second regulating member, and/or – on the second cog 16.

The activation/deactivation member 17 can be part of or be controlled by a flip-flop 171 forming part of the watch movement, the activation/deactivation member 17 being in its activation configuration when the flip-flop is in a first position or configuration and the activation/deactivation member 17 being in its deactivation configuration when the rocker is in a second position or configuration. The first and second configurations or positions are preferably stable configurations or positions. The state of the seesaw is controlled by one or more elements that can be manipulated by a user. For example, the timepiece comprises: - a first pusher 172 on which pressing allows the flip-flop 171 to be configured in the first configuration, and - a second pusher 173 on which pressing allows the flip-flop 171 to be configured in the second configuration .

Preferably, depending on the state of the rocker 171 (and more generally depending on the activation state of the second regulating member 15), the member 20 can be inhibited or the member 20 can be locked so that It is not possible to control the clutch. In particular, it is not possible to activate the coupling using the clutch (more generally not possible to modify the state of the clutch), while the second regulating member 15 is not activated .

[0039] Thus, the watch movement is capable of operating selectively or exclusively: – either according to a first mode of operation (only the first regulating member 13 is activated), – or according to a second mode of operation (the first regulating member 13 and the second regulating organ 15 are activated).

In other words, the first operating mode is an operating mode in which the second regulating member 15 is deactivated and the second operating mode is an operating mode in which the second regulating member 15 is activated.

[0041] Furthermore, the watch movement 1 advantageously comprises a power reserve indication device 3. Preferably, the power reserve indication device is configured or arranged to indicate or count down the power reserve in different ways depending on whether the watch movement operates according to the first mode of operation or according to the second mode of operation. The power reserve indication device comprises one or more power reserve indicators 33, 34 and 35 as illustrated in Figure 3. This or these indicators preferably each comprise a mobile integral with a needle cooperating with a limb on the dial of the timepiece to display power reserve information.

[0042] Without departing from the scope of the invention, the indicator(s) can take any form other than that shown in the figures, such as one or more discs, one or more indexes mounted eccentrically relative to the axis of rotation of the mobile which drives it, and the scale in relation to which the indicator moves to read the information can take other forms than a limb on a dial, in particular an engraving on the frame of the movement, a indication carried by the crystal or any other element of the watch or any other means making it possible to read the movement of a moving element in relation to a fixed element.

Likewise, the display members of the first and/or the second watch function can be formed in a manner other than a hand and a dial.

[0044] Depending on whether the watch movement operates according to the first mode or according to the second mode, the evolution of the power reserve indication of an indicator can evolve differently, that is to say that a hand of The indication can move more or less quickly relative to the dial. Alternatively, depending on whether the watch movement operates according to the first mode or according to the second mode, it may be one or the other of one of the power reserve indicators which is relevant to indicate the power reserve.

The power reserve indication device 3 can make it possible to display different power reserve information, in particular: – a total power reserve defined as the running time until the movement stops ( a value can be associated with the first operating mode and a value can be associated with the second operating mode), – a power reserve associated with the activation of only the first regulating member 13 via the first gear train 14, – a power reserve associated with the activation of only the second regulating member 15 via the second cog 16.

[0046] Preferably, as shown in Figure 3, the power reserve indication device 3 comprises: – a second differential 31 comprising a first input 113, a second input 312 and an output 313, said motor member 12 being in kinematic connection with said first and second inputs 113, 312 of said second differential, in particular a drum 121 of the motor member 12 being linked kinematically to the first input 113 and a ratchet 122 of the motor member 12 being linked kinematically to the second input 312, and - a third differential 32 comprising a first input 321 in kinematic connection with the output 313 of the second differential 31, a first input/output 322 in kinematic connection with the first power reserve indicator 33 and a second input/output 323 in kinematic connection with the second power reserve indicator 34.

Advantageously, one of the first and second inputs/outputs 322, 323 is linked to the first gear train 14 supplying energy to the first regulating member 13 or to the second gear train 16 supplying energy to the second regulating member 15. Thus, when an input/output 323 is linked to the second gear train 16 and the second regulating member is deactivated, the display of the second power reserve indicator 34 is frozen.

According to one embodiment, the input/output 323 is linked to the second gear 16. The power reserve of the second gear is limited between a maximum value defining the maximum time of use of the second function and a minimum value zero, below which the second cog is stopped or can no longer be activated, as described later in the description.

[0049] In this embodiment, the input/output 323 and the input 321 determine at the output 322 the display of the power reserve of the first gear train 33. When the second regulating member 15 is deactivated, the display of the second power reserve indicator 34 is frozen, and the power reserves of the first cog 33 and total 35 will evolve by the same durations, positive when the movement is wound more quickly than it unwinds, and negative when the movement does not is not reassembled and the first function is active.

[0050] By limiting the movement of the second power reserve indicator 34 by stops between the maximum and minimum values, the input/output 323 cannot move beyond this range and the power reserve display on the second power reserve indicator is frozen, resulting in an evolution of the power reserve of the first gear train similar to the mode which has just been described.

[0051] The watch movement 1 preferably comprises means 36 for converting angular travel arranged between the output 313 of the second differential 31 and the input 321 of the third differential 32. Such means make it possible to ensure a reduction ensuring an amplitude of needle movement of a power reserve indicator 35 which is compatible with the power reserve indication function, that is to say preferably less than one turn, or even preferably less than half a turn .

According to a variant, the angular conversion means 36 are integrated into the second differential, that is to say that the ratios of the second differential are calculated so that a complete charge or discharge cycle of the source of energy gives at output 313 a rotation compatible with the power reserve indication function, preferably a rotation less than or equal to one revolution.

[0053] The watch movement 1 also preferably comprises means 37 for limiting angular travel arranged between the output 313 of the second differential 31 and the input 321 of the third differential 32. Such means make it possible to ensure a limitation of movement of the needle of a power reserve indicator 35 when the barrel is of the sliding flange type so that the needle is limited in an extreme position when the barrel is raised beyond what is necessary and the flange sliding of the barrel slides in a drum of the barrel. If the driving source is of the barrel type with a fixed flange, that is to say with a constant number of revolutions for a complete winding cycle, the limitation means 37 can be omitted.

Advantageously, the first power reserve indicator 33 is a power reserve indicator of the first gear train 14.

Advantageously, the second power reserve indicator 34 is a power reserve indicator of the second gear train 16.

Advantageously, the power reserve indicator device 3 comprises a third power reserve indicator 35. This third power reserve indicator 35 is a total power reserve indicator of the movement.

Advantageously, at least two of the first, second and third differentials are arranged coaxially and/or have a common mobile. In the embodiment of Figure 3, two differentials 11, 31 are arranged coaxially and have a common mobile 113.

[0058] Finally, advantageously, the watch movement can comprise a member 4 for automatic activation/deactivation of the second regulating member 15, for example a stop-second 4, arranged and/or configured so that the second regulating member 15 is deactivated when a power reserve threshold is crossed downwards. In Figures 5, 8 and 9, the activation member is controlled by the total power reserve 321, 391, 35 but it can just as easily be controlled by the power reserve 322, 392, 33 of the first cog. Thus, the automatic activation/deactivation member 4 is for example arranged at the output of the second differential or at the first output of the third differential or at the second output of the third differential. Thanks to such a member, the second regulating member can be deactivated as soon as the power reserve reaches a level considered too low. The second operating mode is stopped and the watch movement switches to the first operating mode, the energy consumption of which is lower.

[0059] As illustrated in Figures 5 to 9, the automatic activation/deactivation member 4 preferably comprises: – a control wheel 41 with cam 42 in kinematic connection with the power reserve indication device 3, and – a member 43, in particular a rocker 43, comprising a feeler 44 and a portion 45 for action on the second regulating member 15 or on the second cog 16, for example in a manner similar to the member 17.

[0060] In the embodiments of Figures 5 and 6, an elastic return means such as a spring returns the feeler 44 (or cam follower) into contact against the cam. The return means can act in traction or compression.

[0061] In the embodiment of Figure 7, the connection between the cam and the probe is of the desmodromic type. Thus, the probe comprises one end housed in a cam path provided in the cam.

[0062] Preferably, whatever the embodiment, the cam 42 is advantageously angularly adjustable relative to the rest of the control wheel 41 so as to adjust a deactivation threshold value. This adjustment can be achieved thanks to: – an oblong slot 48 allowing angular movement of the cam 42 relative to the rest of the control wheel 41, and – a screw 49 making it possible to fix the cam 42 relative to the rest of the control wheel 41.

[0063] Other adjustment means can be implemented to allow the user to act on this threshold adjustment using a control member that can be manipulated without dismantling the timepiece.

[0064] In Figure 8, the probe 44 is in contact with a large cam radius and the second regulating member is activated (or at least perhaps activated if the member 17 allows it). The power reserve display 34 of the second gear is then in an active position, that is to say displays a non-zero value.

[0065] In Figure 9, the probe 44 is in contact with a small cam radius and the second regulating member is deactivated (whatever the state of the member 17). The power reserve display 34 of the second gear is then in an inactive position, that is to say displays a zero value.

[0066] According to a variant, the small radius or hollow of the cam is even smaller, so that the probe in this angular position of the cam is no longer in contact with the cam, its stroke towards the center of the cam then no longer being determined by the contact of the feeler on the cam but by the action portion 45 bearing on the second regulating member 15 or on the second cog 16. The depth of the cam can thus be dimensioned so so that the support of the portion 45 is done without excessive pressure on the member that it is intended to stop from rotating.

[0067] According to a variant, an adjustable angular travel stop of the probe 43, 44, 45 can be provided on the frame of the movement to ensure this adjustment in the absence of contact between the probe and the cam in the position in which the cog 15, 16 of the second function is deactivated. This has the advantage of eliminating the friction of the feeler on the cam over the entire angular stroke during which the second cog can no longer be activated, i.e. in principle all the power reserve remaining available for the first cog below the deactivation threshold. This adjustment stop can advantageously be placed towards the regulating member 15 or the cog 16 so as to act on the action portion 45.

[0068] In a variant of the embodiment of the timepiece illustrated in Figure 4, in particular of the power reserve indication device 3, the second and third differentials 38, 39 are adapted to be used with a barrel whose a drum 121 drives the first cog 14 and a ratchet 1222 drives the second cog 16.

[0069] The watch movement can then include a unidirectional disengagement mechanism 51 provided between a winding ratchet 1221 and the ratchet 1222 driving the second gear train. The unidirectional release mechanism 51 can for example be of the ratchet type, of the ball or roller freewheel type, of the anti-return gear type or any other mechanism enabling the same goal to be achieved.

[0070] The watch movement can also include a totalizing mechanism 52 of the unwindings of the two cogs, which could take the form of a differential in which the two unwindings 121, 14 and 1222, 16 are taken as input, one directly , the other by inverting it for example to add it in the same direction, or even without prior inversion of one of the two directions of rotation, which could be integrated into the differential by using planetary gears with a sun wheel (meshing with the satellites from the inside) and crown wheel (meshing with the satellites from the outside), to reverse the direction of rotation inside the differential.

[0071] The output of the totalizer mechanism 52 and the winding ratchet 1221 are linked to two inputs 382, 383 of a differential 38, the output 381 of which is an input/output 391 of a differential 39 and is used to display a reserve total walking distance 35.

[0072] Preferably, at the level of the differential 39, one of the first and second cogs 14, 16 is linked to one of the inputs/outputs 392, 393 of the differential 39. The two inputs/outputs 392, 393 of the differential 39 control power reserve indicators 33, 34 of the first and second cogs 14, 16.

[0073] The timepiece or the watch movement further comprises any means making it possible to govern the operation of the timepiece or the watch movement in accordance with the method which is the subject of the invention.

[0074] A mode of execution of a method of operating a watch movement mentioned above or a timepiece mentioned above is described below.

[0075] The operating method comprises iterations of the following steps: – activation of the second regulating member by a first action of the user, then – activation of the second watchmaking function by a second action of the user, in particular a second action causing coupling of the second gear train and a counting chain of the second watch function by a clutch.

[0076] The first user action and the second user action are not the same and unique action. A minimum delay, for example greater than one second, elapses between the user's first and second actions. This delay allows the second regulating organ to reach a stable operating state before it is used to ensure the second watchmaking function, use triggered by the second action of the user.

[0077] For example, the first user action may be a user action on a first control member, such as a first pusher, and the second user action may be a user action on a second control member, such as a second pusher, the first control member being distinct from the second control member.

[0078] The first user action and the second user action can be two identical user actions on the same control member, such as a pusher, these actions being offset in time.

[0079] For example again, the first action of the user can be an action of pressing the user on a pusher and the second action of the user can be an action of releasing the pusher by the user following the previous support.

[0080] When the use of the second watch function must be terminated, the user can perform a third action in order to deactivate the counting chain of the second watch function. In particular, the third action can cause a decoupling of the second gear and the counting chain of the second watch function at the level of the clutch 18.

[0081] When the second watch function is no longer used, it is possible to deactivate the second regulating member by a fourth user action.

[0082] For example, the third user action may be a user action on the second control member and the fourth user action may be a user action on the first control member.

[0083] The third user action and the fourth user action can be two identical user actions on the same control member, such as a pusher, these actions being offset in time.

[0084] For example again, the third user action may be an action of the user pressing on a pusher and the fourth user action may be an action of releasing the pusher by the user following the previous support.

[0085] The third and fourth actions of the user can be one and the same action.

[0086] Advantageously, the method comprises automatic deactivation of the second regulating member 15 when a power reserve threshold is crossed downward, for example a power reserve threshold of between approximately one day and approximately two days, in particular between approximately 30 hours and approximately 40 hours, while the watch movement operates in its second mode of operation (second regulating organ activated). This deactivation is made possible by the automatic deactivation member 4. The power reserve threshold value can in particular take any integer value of hours in the ranges mentioned above and/or can correspond to an operating autonomy according to the first operating mode where only the first regulating member 13 is activated.

[0087] According to other aspects of the invention, a watch movement according to the invention is defined by the following propositions: 1. Watch movement (1) comprising: – a differential (11) comprising an input (113), a first outlet (111) and a second outlet (112), – a motor member (12), in particular a motor member comprising one or more barrels, in kinematic connection with the input, – a first regulating member (13) in kinematic connection with the first output (111) via a first gear train (14) controlling a first watchmaking function, and - a second regulating member (15) in kinematic connection with the second output (112) via a second gear train (16) controlling a second function watchmaking different from the first watchmaking function. 2. Watch movement (1) according to the previous proposal, characterized in that the first regulating member comprises a first oscillator (13) oscillating at a first frequency, in particular a frequency less than or equal to 10 Hz or less than or equal to 5 Hz, typically oscillating at 3 Hz, and/or in that the second regulating member comprises a second oscillator (15) oscillating at a second frequency, in particular a frequency greater than or equal to 3 Hz or greater than or equal to 5 Hz, typically oscillating at 10 Hz. 3. Watch movement (1) according to the previous proposal, characterized in that the first frequency is lower than the second frequency. 4. Watch movement (1) according to one of the preceding proposals, characterized in that the first watch function is the counting of the current time and/or in that the second watch function is the counting of a chronograph function, in particular the driving of a chronograph counting chain (19) via a clutch (18). 5. Watch movement (1) according to one of the preceding proposals, characterized in that the differential (11) comprises: – a satellite carrier mobile (113) constituting the input (113), – a first planetary mobile (111) ) constituting the first output (111), and – a second planetary mobile (112) constituting the second output (112). 6. Watch movement (1) according to the previous proposal, characterized in that the first planetary mobile (111) comprises a first wheel (1112) with external teeth meshing with at least one first satellite (1132) and/or in that the second planetary mobile (112) comprises a second wheel (1122) with external teeth meshing with at least one second satellite (1133). 7. Watch movement (1) according to one of the preceding proposals, characterized in that the watch movement comprises a member (17) for activating/deactivating the second regulating member (15), for example a stop-second (17) . 8. Watch movement (1) according to one of the preceding proposals, characterized in that the watch movement comprises a member (20) for activating/deactivating the clutch of the chronograph counting chain. 9. Watch movement (1), in particular watch movement (1) according to one of propositions 1 to 8, capable of operating selectively according to a first mode of operation or according to a second mode of operation, the watch movement comprising: – a member motor (12), and – a power reserve indicating device (3), the power reserve indicating device being configured or arranged to indicate or count down the power reserve in different ways depending on whether the watch movement is operating according to the first mode of operation or according to the second mode of operation. 10. Watch movement (1) according to the previous proposal, characterized: – in that the movement (1) comprises a first regulating member (13) and a second regulating member (15), – in that the first mode of operation is an operating mode in which the second regulating member (15) is deactivated, and, – in that the second operating mode is an operating mode in which the second regulating member (15) is activated. 11. Watch movement (1) according to proposition 9 or 10, characterized in that the power reserve indication device (3) comprises: – a second differential (31) comprising a first input (113), a second input (312) and an output (313), said motor member (12) being in kinematic connection with said first and second inputs (113, 312) of said second differential, in particular a drum (121) of the motor member (12) being kinematically linked to the first input (113) and a ratchet (122) of the motor member (12) being kinematically linked to the second input (312), - a third differential (321, 322, 323) comprising a first input ( 321) in kinematic connection with the output (313) of the second differential (31), a first input/output (322) in kinematic connection with a first power reserve indicator (33) and a second input/output (323) in kinematically connected with a second power reserve indicator (34), one of the first and second outputs (322, 323) being connected with a first gear train (14) linked to the first regulating member (13) or with a second gear train (16) linked to the second regulating organ (15). 12. Watch movement according to proposition 11, characterized in that it comprises means (36) for converting angular travel arranged between the output (313) of the second differential (31) and the input (321) of the third differential ( 32). 13. Watch movement according to one of propositions 11 and 12, characterized in that it comprises means (37) for limiting angular travel arranged between the output (313) of the second differential (31) and the input (321 ) of the third differential (32). 14. Watch movement (1) according to one of propositions 11 to 13, characterized in that the first power reserve indicator (33) is a power reserve indicator of the first cog (14) and/or in that the second power reserve indicator (34) is a power reserve indicator of the second gear train (16). 15. Watch movement according to one of propositions 11 to 14, characterized in that the power reserve indicating device (3) comprises a third power reserve indicator (35). 16. Watch movement according to one of propositions 11 to 15, characterized in that at least two of the first, second and third differentials are arranged coaxially and/or have a common mobile. 17. Watch movement (1) according to one of the preceding proposals, characterized in that the watch movement comprises a member (4) for automatic activation/deactivation of the second regulating member (15), for example a stop-second (4). ), arranged and/or configured so that the second regulating member (15) is deactivated when a power reserve threshold is crossed downward, the automatic activation/deactivation member (4) being by example arranged at the output of the second differential or at the first output of the third differential or at the second output of the third differential. 18. Watch movement according to the previous proposal, characterized in that the automatic activation/deactivation member (4) comprises: – a control wheel (41) with cam (42), in particular a cam (42) angularly adjustable by relative to the rest of the control mobile (41) so as to adjust a deactivation threshold value, in kinematic connection with the power reserve indication device (3), and – a member (43), in particular a rocker (43 ), comprising a feeler (44) and a portion (45) for action on the second regulating member (15) or on the second cog (16).

[0088] According to another aspect of the invention, a timepiece according to the invention is defined by the following propositions: 19. Timepiece (100), in particular wristwatch, comprising a watch movement (1) according to one of propositions 1 to 18.

[0089] According to other aspects of the invention, an operating method according to the invention is defined by the following propositions: 20. Method of operating a watch movement according to one of propositions 1 to 18 or a timepiece according to the previous proposal, the method comprising iterations of the following steps: - an activation of the second regulating organ by a first action of a user, then - an activation of the second watchmaking function by a second action of the user, in particular a second action causing a coupling of the second gear and a counting chain of the second watch function by a clutch. 21. Operating method according to the previous proposal, characterized in that it comprises: – deactivation of the counting chain of the second watch function by a third action of the user, in particular a third action causing decoupling of the second gear train and the counting chain of the second watchmaking function at the level of a clutch, then – a deactivation of the second regulating member by a fourth action of a user. 22. Operating method according to proposition 20 or 21, characterized in that it comprises automatic deactivation of the second regulating member when a power reserve threshold is crossed downwards.

[0090] Other aspects of the invention, which can be combined with the aspects mentioned above, relate to stopping devices: a.) a stop-second device (allowing the movement to be stopped), which can in particular be controlled manually by a direct or indirect command from the user, such as for example when setting the time, but potentially also in automatic mode, for example if the power reserve of the movement reaches a level which no longer allows the regulating body to operate with a sufficient level of chronometric performance. b.) a stop-cage device (allowing a cage to be stopped while leaving the regulating organ and the gear running), which can in particular be activated in a first automatic mode, according to a trigger instruction, like a low power reserve threshold, and at least a second manual mode, controlled by the user directly or through another function. This function makes it possible to reduce or even deduct the energy loss due to the cage drive and thus increase the power reserve.

[0091] Advantageously, the watch movement 1 comprises a stopping mechanism comprising a stop-tourbillon device.

[0092] The stop-tourbillon device comprises a stopping device 2' intended to cooperate with teeth 12' of a tourbillon cage 1' so as to stop the rotation of the cage.

[0093] As shown in Figures 10 to 12, the stopping device 2' preferably comprises a rocker 20' capable of occupying at least two positions: a blocking or stopping position of the teeth 12' of the cage and a release position of the teeth 12' of the cage.

[0094] The rocker 20' controls a locking member 22', subjected to an elastic restoring force of a spring 223' to: – in a first so-called stopping position, bear against the teeth 12' of the cage tourbillon 1', and - in a second position, be released from the teeth 12', so as to allow the tourbillon cage 1' to rotate.

[0095] For example, the locking member 22' can be movably mounted on an element of the frame. When the locking member is not released by the action of a part 201' of the rocker on a tenon 221' (which can come integrally with the locking member or be attached to the locking member ), the blocking member 22' blocks the teeth 12' via at least one tooth or beak 222' which could take a shape other than that shown.

[0096] For example, the locking member 22' can be movably mounted on the rocker 20'. In a first variant, the rocker can release the locking member 22' which is by default subject to the action of an elastic return spring 223' cooperating with a support element 253', preferably mounted on the frame , and preferably adjustable, and which recalls the blocking member 22' against the teeth 12'.

[0097] Alternatively, the blocking member 22' can be mounted on the rocker 20', elastic return means 223 then bearing on a stop or support element of the rocker 20', so that when the rocker 20' drives the locking member 22' against the teeth 12', the latter can move in the opposite direction to that in which the rocker drives it in order to limit the pressure it exerts on the teeth 12' .

Whatever the variant, the rocker 20' and the locking member 22' can be made of material, that is to say in a single piece (monolithic manner).

Previously, the rocker and the blocking member were considered as pivoted parts. However, whatever the variant, the rocker and the blocking member can either move in other modes, such as translation or a combination of rotations and translations, between the blocking position and the release position (of the teeth).

[0100] One aspect of the invention is defined by the propositions which follow and which can be combined with all the elements described previously: 31. Stopping mechanism for a tourbillon 1' comprising a stopping device 2' equipped with at least one tooth or beak 222' intended to cooperate with teeth 12' of a cage of a tourbillon 1', so as to stop its rotation, in particular so as to stop its rotation in a straightforward manner and with a force of support limited by cooperation of the tooth or the beak with a hollow of the teeth 12'. 32. Mechanism according to proposition 31, characterized in that the stopping device 2' comprises: - a rocker 20', and - a blocking member 22' carried by a frame or the rocker, the blocking member 22' which can come from material with the 20' rocker. 33. Mechanism according to proposition 30 or 31, characterized in that the stopping device 2' can be controlled: – manually by the user, for example when setting the time (stop-second) , and – automatically (for example when the power reserve is too low for the regulating organ to operate satisfactorily – too little amplitude leading to advance of the rate). 34. Watch movement comprising a mechanism according to one of propositions 31 to 33. 35. Timepiece comprising a mechanism according to one of propositions 31 to 33 and/or a watch movement according to proposition 34.

[0101] In order to reduce the energy consumption of the watch movement 1 equipped with at least one tourbillon type regulator 1' and intended to regulate one or more additional functions to the first gear train, particularly in the case of energy-consuming functions, it It may be advantageous to stop the tourbillon cage while leaving the train to maintain the oscillations of the tourbillon balance, the consumption of the regulating member then being reduced by that necessary for driving the cage. The power reserve of the energy source is then greater than that of the same gear train operating with the rotating tourbillon. To do this, the watch movement 1 includes a stopping mechanism comprising a stop-cage device.

[0102] The activation mode of the stop-cage device can be automatic, for example depending on an instruction given directly or indirectly by the energy source, for example, semi-automatic when activating a function energy-intensive or after a given time of activation of the energy-intensive function, or even manually, on demand, if the user wants to preserve the energy reserve or give a different appearance to his room by stopping the cage.

[0103] Manual activation of this mode can also allow the user who does not wear his watch (at night for example) to put his timepiece in “energy saving” mode.

[0104] Manual activation can also allow the user to stop the cage in a precise position (a tourbillon whose rotation takes place in one minute can carry a 16' hand or an index which makes it possible to read a unit of time derived from the speed of rotation of the cage, the second for example) to for example let the movement run until the minute hand is aligned with the seconds indicator 16', and thus synchronize the hand minutes and the seconds indicator (when the tourbillon cage rotates at a speed of one rotation per minute).

[0105] Finally, activating this mode manually by a user command can also allow a tourbillon equipped with this mechanism to measure an elapsed time in the unit and over a time range defined by the speed of rotation of the tourbillon cage (for example, if the cage rotates once per minute, it is possible to measure times in seconds, up to one minute, between a first event and a second event) while letting the gear train rotate .

[0106] For example, we can: – stop the cage in a reference position (for example zero), then – trigger the rotation of the cage during the first event, then – stop the cage again during the second event.

[0107] Between the first event and the second event, the cage rotated by an amount representative of the time separating the first and second events. Thus, the tourbillon cage can basically serve as a chronograph.

[0108] By adding a mechanism for resetting the tourbillon cage, the ergonomics of such an operating mode is increased, the user then no longer needing to wait for the cage to arrive in its position. reference to stop it for a new start, but can instantly return it to this position at any time.

[0109] The stop-cage device may comprise: – a device for controlling the operation of the tourbillon 2”, – an activation member of the control device 3’, and – a transmission device 4’ arranged between the gear train ( not shown) and the 1" tourbillon.

[0110] The cage of the fixed-wheel tourbillon is normally driven by a gear train and regulated by a regulating member which it carries, the regulating member comprising an escape pinion which meshes with a fixed wheel (the tourbillon operating like a planetary ).

[0111] In order to stop the cage while allowing the regulating member to oscillate and the cog to rotate, the configuration of the fixed wheel is modified in such a way that it can operate: – in a first mode of operation in which it is fixed, the tourbillon operating in a conventional manner by rotating, and - in at least a second mode of operation in which it is movable in rotation and free to be driven by the regulating member whose fixed frame of reference is then no longer the wheel 14' but the cage carrying the teeth 12'.

[0112] One embodiment of a watch movement or stopping mechanism is shown in Figures 13 to 15. In this embodiment, the tourbillon 1" comprises a cage provided with teeth 12' and supporting an escapement, of which the escape wheel pinion 15' cooperates with the wheel 14', the teeth 12' are in this case driven by the gear train.

[0113] In order to allow the wheel 14' to rotate when the cage is stopped, the wheel 14' is mounted to rotate freely relative to the frame, on a bearing or any other means allowing it to be given the same degree of freedom in rotation.

[0114] Since the regulating member cannot be driven by the teeth 12' of the cage when the latter is stopped, its drive by the gear train is also modified. Thus, the tourbillon cage is in kinematic connection with the motor train or train linking the energy source to the tourbillon (not shown) through a 4' differential.

[0115] The differential 4' comprises: - an input 41' meshing with the engine train, - a first output 42' meshing with the teeth 12' of the tourbillon cage, and - at least one second output 43' meshing with the wheel 14' through a second toothing 13' of which the wheel 14' is integral.

[0116] The wheel 14' cooperating with the pinion 15' of the escape wheel which rotates around it continuously, it is not possible to engage the second output 43' of the differential in the same plane of the wheel 14' as the plane containing the pinion 15'. The version illustrated offers a wheel with a 13' toothing different from the 14' toothing. However, the same toothing of wheel 14' could mesh in two different planes, on the one hand with the output wheel 43' of the differential and on the other hand with the pinion 15'.

[0117] In order to control the rotation and the operating modes of the tourbillon, a control device 2' is provided. It comprises: - a first locking member 22" intended to cooperate with the teeth 12' of the tourbillon cage to stop its rotation, or the output wheel 42' of the differential, - a second locking member 23' secured to the first blocking member 22' and intended to cooperate with the teeth 13' of the tourbillon (previously described), or the output wheel 43' of the differential, and - a control member 21' which controls the rotation of the blocking members 22" and 23' and their respective position relative to the teeth 12', 42', 13' and 43'.

[0118] Preferably, the control device 2' also comprises a rocker 20" intended to cooperate with the blocking member 22" in an operating mode which will be described later (stop-second).

[0119] When the control device 2" is in the position of Figure 13, the wheel 13' is blocked and the wheel 14' behaves like the fixed wheel of a tourbillon, and the toothed sector 12' of the cage is free. The output wheel 43' of the differential 4' is also blocked and the output wheel 42' transmits the energy of the gear train through the input wheel 41' to the tourbillon cage.

[0120] When the control device is in the position of Figure 14, the teeth 12' of the cage are blocked and the wheel 14' is free to rotate. The output wheel 42' of the differential 4' is also blocked and the output wheel 43' transmits the energy from the gear train through the input wheel 41' to the exhaust pinion of the regulating member.

[0121] We thus understand that the blocking of the teeth 12' or the wheel 14' is equivalent to the blocking of the wheels 42' or 43', and that thus the control device 2" illustrated functions in the same way by acting directly on the 4' differential.

[0122] We also understand that if the teeth 12' turn in a first direction when it is it which turns, the wheel 14' turns in a second direction opposite to the first direction when it is it which turns.

[0123] On the other hand, the energy necessary for driving the cage in the configuration of Figure 13 is reduced, or even eliminated, in the configuration of Figure 14. Thus, the energy necessary for maintenance of the oscillations of the regulating organ is also advantageously reduced, so as to avoid: – too great an amplitude of the balance, – kickback, or – other problems, affecting the proper functioning and/or chronometry of the watch movement.

[0124] Thus, preferably, the configuration of the differential and the respective numbering of its mobiles are such that: – on the one hand, rotations in the opposite direction are ensured between its outputs 42' and 43', so that the teeth 12' and wheel 14' rotate in opposite directions (we could also use a differential 4 whose outputs rotate in the same direction and add an odd number, preferably one, of intermediate mobiles between one of the outputs 42' , 43' of the differential and one of the teeth 12' and of the wheel 14' of the tourbillon), - on the other hand, it is ensured that, relative to the exhaust pinion 15', the energy transmitted to the wheel 14' through the outlet 43', is less than the energy transmitted to the toothed cage 12' through the outlet 42', preferably less than the difference in consumption or energy dissipation between operation in mode rotating tourbillon and stopped tourbillon mode.

[0125] Other types of differentials can also be used, such as ball differentials or any other type of planetary gear allowing the same result to be obtained.

[0126] The device for controlling the operation of the tourbillon 2" can be controlled in different ways and advantageously through a control member 21' which can be activated: – by the user manually, for example by an external control such as a pusher or other, or – semi-automatically, for example in response to the activation of a function, advantageously an energy-consuming auxiliary function which would require an economy mode of the main gear, or following a duration operation of an auxiliary function, or – automatically, for example in response to an instruction given automatically by the movement as a threshold of energy available in the energy source below which it is preferable to switch to mode economical to preserve the remaining power reserve.

[0127] Thus, in Figures 13 to 15, the control member 21' is controlled by an activation member of the control device 3', here a cam, through a tenon 213'. In this variant embodiment, the cam 3' has for example a guide portion 32', 33' intended to move the tenon 213' and thus the member 21' as well as the member for controlling the movement of the tourbillon 2" between at least two positions in which one or the other of the locking members 22", 23' directly or indirectly blocks one or the other of the teeth 12' and the wheel 14'.

[0128] In an automatic activation mode of the device for controlling the operation of the tourbillon 2" to make it switch from one mode to another (from the mode in which the tourbillon cage rotates to the mode in which the tourbillon cage tourbillon is stopped and vice versa), the activation member 3' can for example be in kinematic connection with the energy source, preferably with an available energy measurement mechanism (such as for example a power reserve or a dynamometric measurement). One of the guide portions 33' may correspond to a high state of the power reserve, in which the tourbillon cage rotates, and the other of the guide portions 32' may correspond to a state bottom of the power reserve, in which the tourbillon cage is stopped.

[0129] In such an application, the control member 3' is preferably configured to pass from one state to another in a reversible manner, so that the device for controlling the operation of the tourbillon 2" can be activated in both directions, namely when the power reserve drops below a defined threshold and when after falling below this threshold, the user winds the watch movement and the energy level rises above of the threshold.

[0130] The activation member of the control device 3' is described here in a non-limiting manner in the form of a cam. It is obvious that such a cam is only presented here for illustrative purposes but that any other known mechanism allowing a rotating moving part to pass between two positions could just as easily be used without departing from the scope of the invention.

[0131] In order to avoid any excessive pressure of one or the other of the blocking members 22", 23' on the teeth with which it cooperates, the control member 21' can be provided with an elastic portion 210', for example a clearance resulting in two flexible blades to ensure high out-of-plane rigidity and controlled in-plane flexibility.

[0132] In order to adjust the position of at least one of the blocking members 22", 23' relative to the control member 21', the blocking members can be provided with adjustment means 214' (for example a eccentric), 224'. These means make it possible to adjust their penetration into the teeth with which they cooperate, but also to adjust their relative penetration between them, in particular in order to avoid that at any time, the teeth 12' and the wheel 14 ' are completely free and at least one is always stopped by device 2"

[0133] In a variant that can be combined with the previous variants, the blocking member 22" allows at least one additional mode of operation. Indeed, in the position of Figure 13, that is to say with the tourbillon cage rotating, it is possible to move the blocking member 22" relative to the blocking member 23' so that the two simultaneously and at least indirectly block the teeth 12' and the wheel 14' of the tourbillon and thus obtain a stop -second.

[0134] In this variant, the blocking member 22" is therefore mounted movable in rotation relative to the control member 21', the additional rotation for the stop-second function being authorized against a blocking member. elastic return 225' bearing on a stop 215' of the control member 21'.

[0135] To carry out this mode of stopping the so-called stop-second gear, a 20" rocker, which can be controlled by the user through any mechanism, for example when setting the time by a member controlled by this mechanism drives the stop member 22" through a portion 201" of the rocker 20" which moves it against the elastic return element 225'.

[0136] In order to avoid excessive pressure of the stop member 22" against the teeth 12' or the outlet 42' with which it cooperates, the portion 201" of the rocker 20" can be elastically deformable.

[0137] The stop-tourbillon device with stop-second function described previously by way of illustration with respect to the figures can in the same way be applied to the blocking member 23', giving it the same characteristics (rotary movement, control, etc.), the stop-seconds then being effective in both modes of using the tourbillon.

[0138] One aspect of the invention is defined by the propositions which follow and which can be combined with all the elements described above: 41. Stopping mechanism for a 1" tourbillon comprising: – a 2" control device, – a transmission/distribution device 4', preferably a differential 4', and – a control member 3'. 42. Stopping mechanism, in particular stopping mechanism according to proposition 41, comprising a stop-cage device combined with a stop-second device, the stop-second device preferably being able to operate whatever the state ( engaged, disengaged) of the cage stop device. 43. Stopping mechanism according to proposition 41 or 42, comprising means of adjustment (preferably of the penetration of blocking members relative to the gear and of the blocking members between them), and means of limiting the pressure exerted against the teeth by the blocking members. 44. Stopping mechanism according to one of propositions 41 to 43, arranged and/or configured so that the stop-cage device is controlled automatically, preferably by a setpoint from the watch movement of which it is a part, preferably by a power reserve threshold value. 45. Stop mechanism according to one of proposals 41 to 44, arranged and/or configured so that the stop-cage device is controlled semi-automatically, preferably upon activation of an auxiliary function or after a certain amount of time has elapsed after this activation. 46. Watch movement comprising a mechanism according to one of propositions 41 to 45. 47. Timepiece comprising a mechanism according to one of propositions 41 to 45 and/or a watch movement according to proposition 46.

Claims (16)

1. Watch movement (1) comprising: – a differential (11) comprising an input (113), a first output (111) and a second output (112), – a motor member (12), in particular a motor member comprising one or more barrels, in kinematic connection with the input, – a first regulating member (13) in kinematic connection with the first output (111) via a first gear train (14) controlling a first watchmaking function, and – a second regulating member (15) in kinematic connection with the second output (112) via a second gear train (16) controlling a second watchmaking function different from the first watchmaking function. 2. Watch movement (1) according to the preceding claim, characterized in that the first regulating member comprises a first oscillator (13) oscillating at a first frequency, in particular a frequency less than or equal to 10 Hz or less than or equal to 5 Hz, typically oscillating at 3 Hz, and/or in that the second regulating member comprises a second oscillator (15) oscillating at a second frequency, in particular a frequency greater than or equal to 3 Hz or greater than or equal to 5 Hz, typically oscillating at 10 Hz. 3. Watch movement (1) according to the preceding claim, characterized in that the first frequency is lower than the second frequency. 4. Watch movement (1) according to one of the preceding claims, characterized in that the first watch function is the counting of the current time and/or in that the second watch function is the counting of a chronograph function, in particular the driving of a chronograph counting chain (19) via a clutch (18). 5. Watch movement (1) according to one of the preceding claims, characterized in that the differential (11) comprises: – a mobile satellite carrier (113) constituting the input (113), – a first planetary mobile (111) constituting the first output (111), and – a second planetary mobile (112) constituting the second output (112). 6. Watch movement (1) according to the preceding claim, characterized in that the first planetary mobile (111) comprises a first wheel (1112) with external teeth meshing with at least one first satellite (1132) and/or in that the second planetary mobile (112) comprises a second wheel (1122) with external teeth meshing with at least one second satellite (1133). 7. Watch movement (1) according to one of the preceding claims, characterized in that the watch movement comprises a member (17) for activating/deactivating the second regulating member (15), for example a stop-second (17) . 8. Watch movement (1) according to one of the preceding claims, characterized in that the watch movement comprises a member (20) for activating/deactivating the clutch of the chronograph counting chain. 9. Watch movement (1) according to one of claims 1 to 8, characterized in that it is capable of operating selectively according to a first mode of operation or according to a second mode of operation, the watch movement comprising a device for power reserve indication (3), the power reserve indication device being configured or arranged to indicate or count down the power reserve in different ways depending on whether the watch movement operates according to the first mode of operation or according to the second mode Operating. 10. Watch movement (1) according to one of claims 1 to 9, characterized in that the first cog (14) and the second cog (16) are independent and/or in that the first regulating member (13) and the second regulating organ (15) are independent. 11. Watch movement (1) according to one of claims 1 to 10, characterized in that the watch movement is arranged and/or configured so as to operate selectively or exclusively: – either according to a first operating mode where only the first regulating member (13) is activated, – or according to a second operating mode where the first regulating member (13) and the second regulating member (15) are activated. 12. Timepiece (100), in particular wristwatch, comprising a watch movement (1) according to one of claims 1 to 11. 13. Method of operating a watch movement according to one of claims 1 to 11 or a timepiece according to the preceding claim, the method comprising iterations of the following steps: – activation of the second regulating organ by a first action of a user, then – activation of the second watch function by a second action of the user, in particular a second action causing a coupling of the second gear train and a counting chain of the second watch function by a clutch. 14. Operating method according to the preceding claim, characterized in that it comprises: – a deactivation of the counting chain of the second watchmaking function by a third action of the user, in particular a third action causing a decoupling of the second gear train and the counting chain of the second watchmaking function at the level of a clutch, Then – deactivation of the second regulating organ by a fourth action of a user. 15. Operating method according to claim 13 or 14, characterized in that it comprises automatic deactivation of the second regulating member when a power reserve threshold is crossed downwards. 16. Method of operating a watch movement according to one of claims 1 to 11 or a timepiece according to claim 12, the watch movement being capable of operating selectively or exclusively: – either according to a first operating mode where only a first regulating member (13) is activated, – or according to a second operating mode where the first regulating member (13) and a second regulating member (15) are activated.