CH706361B1 - Winding watch device with automatic winding and associated watch. - Google Patents

Abstract

The invention relates to a device (300) for winding automatic watches, comprising at least one electrical supply means or an electric accumulator, and at least one receptacle support (301) for a watch, said receptacle support (301) comprising a bearing surface (302) for receiving the bottom of a watch. Said device (300) comprises means for generating a magnetic and / or electrostatic field arranged in a fixed position under said bearing surface (302) and generating, at at least one angular sector (304) of a substantially annular emission zone, at least one magnetic field and / or electrostatic direction orthogonal to said bearing surface (302) and intensity and / or direction variable as a function of time. The invention also relates to a watch (200) comprising an automatic winding with an oscillating mass comprising a first ferromagnetic inner portion and a second heavy metal peripheral portion, and / or a paramagnetic conductive disc coaxial with said oscillating weight.

Description

Description

FIELD OF THE INVENTION [0001] The invention relates to a winding device for an automatic winding watch, comprising a guide at its pivot axis and inscribed in a cylinder of maximum radius, and comprising drive means for a mechanism for recharging energy.

The invention further relates to an automatic winding watch comprising at least one moving mechanical mass for recharging mechanical energy of at least one accumulator such a barrel.

The invention also relates to a watch movement comprising at least one mechanical energy accumulator such a barrel, and at least one such automatic winding.

The invention also relates to a self-winding watch, comprising at least one such movement, and / or at least one mechanical energy accumulator such a barrel, and at least one such automatic winding.

The invention also relates to a winding device for automatic watches, comprising at least one electric accumulator, and at least one receptacle support for a watch, said receptacle support having a bearing surface for receiving the bottom of 'a watch.

The invention also relates to a watch assembly comprising such a device, and at least one such watch.

The invention relates to the field of watchmaking, and more particularly the reassembly of automatic watches.

BACKGROUND OF THE INVENTION [0008] The user of a self-winding watch that is not worn at all times is obliged, when he wishes to use it, to perform the tasks of updating the displays. which can be tedious for dates, or difficult or impossible for complications such as moon phases or other leap years in a perpetual calendar.

Known winding cabinets, or individual devices, which simulate the movements of a user by rotating the watch, generally around several axes, to give the oscillating weight pulses needed to perform the reassembly . These cabinets or devices are often bulky, expensive, and the movement can disturb the user. In particular, such devices are not well suited in a commercial environment, where a watch must be statically exposed to the customer, with correct display of time-related information, while being ready for a demonstration. SUMMARY OF THE INVENTION [0010] The invention proposes to provide the user with simple, inexpensive and compact means to remount a self-winding watch and keep it permanently in power reserve potential. maximum even if it is not worn.

For this purpose, the invention relates to a winding device for automatic watch winding, comprising a guide at its pivot axis and inscribed in a cylinder of maximum radius and having means for driving a mechanism reloading energy, characterized in that it comprises, or at least a ferromagnetic or magnetized portion for driving said mobile by a variable magnetic field, or an electrified portion for driving said mobile by a variable electrostatic field or a paramagnetic conductive ring surrounding said pivot axis for driving said mobile by eddy currents.

The invention also relates to an automatic watch winder comprising at least one mass in mechanical movement for recharging mechanical energy of at least one accumulator such a barrel, characterized in that said winding comprises, in addition or in place and placing said at least one mass in mechanical movement, at least one such winding mobile.

The invention also relates to a watch movement comprising at least one mechanical energy accumulator such as a barrel, and at least one such automatic winding.

The invention also relates to a self-winding watch, comprising at least one such movement, and / or at least one mechanical energy accumulator such a barrel, and at least one such automatic winding.

The invention also relates to a winding device for automatic watches, comprising at least one power supply means or an electric accumulator, and at least one receptacle support for a watch, said receptacle support having a bearing surface for to receive in support the bottom of a watch, characterized in that said device comprises means for generating a magnetic and / or electrostatic field arranged in a fixed position under said bearing surface and generating, at least one track, at least one magnetic field and / or electrostatic and / or intensity and / or direction variable as a function of time.

The invention also relates to a watch assembly comprising such a device, and at least one such watch, characterized in that said device comprises regulation and control means for controlling said generation means, and that said means for control and control and said generating means are adapted and formatted for driving: - or at least one mass in magnetic movement that includes said at least one watch, for recharging mechanical energy of at least one accumulator such a barrel, or at least one paramagnetic conductive disc coaxial with said mass in mechanical movement, which comprises said at least one watch, and arranged as said at least one mass in mechanical movement for recharging mechanical energy from at least one cylinder or accumulator, or at least one mass in magnetic movement that comprises said at least one watch, and at least one a paramagnetic conductive disk coaxial with said mass in mechanical movement, which includes both said at least one watch for recharging mechanical energy of at least one cylinder or accumulator, for driving, as the case may be, said at least one a mass in magnetic movement by magnetic coupling, and / or said at least one disk by eddy currents.

BRIEF DESCRIPTION OF THE DRAWINGS [0017] Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which: FIG. 1 represents, schematically and in perspective, a watch assembly according to the invention, comprising an automatic winding device according to the invention and a self-winding watch; fig. 2 represents, schematically and in front view, a so-called magnetic moving mass according to the invention; fig. 3 represents the mass in magnetic movement of FIG. 2, modified by the addition of blanks; fig. 4 shows, schematically and in front view, a moving mass called magnet according to the invention; fig. 5 shows schematically and in front view, a paramagnetic conductive disk according to the invention, in a particular variant having openings; fig. 6 is a diagram showing the interactions between the constituent circuits of a winding device according to the invention on the one hand, and between the components of the winding of a watch on the other hand; fig. 7 represents, schematically and in front view, a bearing surface, which comprises an automatic winding device according to the invention, for receiving the bottom of a watch, in a variant where this device comprises a zone d emission of a variable field, said rotating, according to a circular sector; fig. 8 shows, similarly to FIG. 7, another variant wherein the emission zone of the rotating field is in a linear segment; fig. 9 is similar to FIG. 8, a derived variant where the emission zone of the rotating field is in two disjoint linear segments.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0018] The invention relates to simple, inexpensive and compact means for reassembling a self-winding watch.

These means comprise means for generating a so-called rotating field, that is to say a magnetic field and / or electrostatic and / or intensity and / or variable direction as a function of time. As will be seen below, this field, said rotating, can be deployed along any profile, linear, circular, or other.

The principle of the invention is to drive a charging mobile of a mechanical energy accumulator such as a cylinder, by an electromagnetic force or by eddy currents, depending on the material of this mobile. Such a mobile driven by electromagnetic forces is called here "oscillating mass", and generally adopts the form of a conventional mechanical oscillating mass disk sector. A mobile driven by eddy currents preferably has a closed surface around its pivot axis, and is comparable to a disk, and is referred to as such in the following description. An oscillating mass can be extended without limitation to a mechanical mass in motion, for example translation.

In a preferred embodiment of the invention, these winding means go hand in hand with watches adapted for optimal operation.

If the winding means according to the invention are, in principle, capable of driving a conventional oscillating weight steel, they are not directly adapted to the best for driving a gold oscillating weight in form a sector that does not allow the optimal flow of eddy currents.

The invention is developed so as to allow easy adaptation of existing oscillating masses to the winding mechanism, without significant change in movement. It is adapted to a simple replacement of a standard oscillating mass by a mass with a particular composition of materials.

In the variant of an eddy current drive, the invention provides the addition of a disk, preferably coaxially with the mechanical oscillating weight of the watch. This original mechanical oscillating weight must then remain in place to ensure reassembly when the watch is worn. The modification of the movement is then limited, especially since the disc can be mounted, either independent of or integral with the mechanical oscillating mass, to attack, or the same driving drag of the cylinder, or a separate röchet. The problem of training the barrel for reassembly is well known to those skilled in the art, and is not discussed here.

The choice of the mobile winding of the watch is guided by the optimal behavior of the mobile depending on the type of field to which it is subject.

In the remainder of the description, "magnetically permeable" materials are defined as materials which have a relative permeability of between 10 and 10,000, such as steels, which have a relative permeability close to 100 for rocker shafts. for example, or close to 4000 for steels commonly used in electrical circuits, or other alloys whose relative permeability reaches values of 8000 to 10 000.

"Magnetic" materials, for example in the case of polar masses, are called materials capable of being magnetized so as to have a residual field of between 0.1 and 1.5 Tesla, such as for example "Neodymium Iron". Boron "with a magnetic energy density Em of 512 kJ / m3 and giving a residual field of 0.5 to 1.3 Tesla. A lower residual field level, towards the lower part of the range can be used when combining, in a magnetization couple, such a magnetic material with a magnetically permeable antagonist component of high permeability, closer to 10,000. in the range of 100 to 10,000.

Materials "ferromagnetic" materials whose characteristics are: saturation field Bs> 0 at temperature T = 23 ° C, coercive field Hc> 0 at temperature T = 23 ° C, maximum magnetic permeability pR> 2 at temperature T = 23 ° C, Curie temperature Te> 60 ° C.

More particularly, it will be described as "magnetically soft materials" those whose coercive field is small (Hc <1000 A / m) and with a low hysteresis cycle.

More particularly, it will be described as "magnetically hard materials" those whose coercive field is large (Hc> 3000 A / m) and with a large hysteresis cycle, for example permanent magnets.

"Paramagnetic" materials will be called materials having a relative magnetic permeability of between 1.0001 and 100, for example for spacers interposed between a magnetic material and a magnetically permeable antagonistic component, or alternatively between two magnetic materials, for example a spacer between a component and a polar mass. For example, weakly paramagnetic materials are: aluminum, gold, brass or the like (magnetic permeability less than 2).

The invention relates to various devices: - a mobile winding 50 included in the movement of the watch, and consisting of one or more masses called "oscillating" 1,3, 5, and / or one or more discs 20. This mobile winding 50 is driven: • or magnetic and electrostatic attraction and / or repulsion; • or by eddy currents; - a winder 10; a movement 100; a watch 200; a winding device 300; a watch assembly 400 comprising a winding device 300 and at least one watch 200.

The winding device 50 automatic winding watch comprises a guide 2 at its pivot axis D. This mobile 50 is inscribed in a cylinder of maximum radius RMAX centered on this axis D, and comprises means of driving an energy charging mechanism, such as röchet for driving a barrel, or the like.

According to the invention, this mobile 50 comprises, or at least a ferromagnetic or magnetized portion for driving the mobile 50 by a variable magnetic field, or an electrified portion for driving the mobile 50 by a field electrostatic variable, or a paramagnetic conductive ring surrounding the pivot axis D on a sufficiently large diameter for driving the mobile 50 by eddy currents. In the latter case, it is understood that this conductive ring is preferably at the periphery of the mobile 50, which is then called "disk" 20.

In a first variant, as shown in FIG. 2, the winding mobile 50 comprises at least one magnetic oscillating mass 1, which comprises a first ferromagnetic inner portion 8 extending on radii below the minimum radius RMIN of a second peripheral portion 9 of heavy metal. By heavy metal is meant a material of atomic number between 73 and 79, or an alloy comprising at least 80% of heavy metal of atomic number between 73 and 79.

The RMIN / RMAX ratio is preferably greater than 0.5.

In a particular embodiment, allowing a large inertia of the magnetic oscillating mass 1, the second peripheral portion 9 comprises at least 50% of tungsten.

In another particular embodiment adjacent, the second peripheral portion 9 comprises at least 50% of tungsten and at least 20% of gold.

In conjunction with one of these two embodiments based on tungsten, in yet another particular embodiment, the second peripheral portion 9 comprises at least 20% iron.

In a particular embodiment, the first inner portion 8 is made of magnetically soft material.

FIG. 3 illustrates a variant of FIG. 2 where the magnetic oscillating mass 1 has openings 40 at the first inner portion 8.

FIG. 4 illustrates a winding mobile 50 which comprises at least one oscillating mass 5 called magnet, comprising at least one component of magnetically hard material 6 eccentric with respect to said guide 2.

In another variant not illustrated, the mobile winding 50 comprises at least one electrified portion for driving the mobile 50 by a variable electrostatic field, which advantageously comprises electrets.

It is understood that it is possible to accumulate, on the same mobile, and especially at different tracks, on different diameters, and / or on different faces, and / or on different floors, areas likely to be driven, or by magnetic force, or by electrostatic force, or by eddy currents: the possibilities of mixing are numerous, and are not exposed here so as not to overload the present description.

For the variant with eddy current drive, FIG. 5 represents a winding mobile 50 which comprises at least one disc 20 comprising at least one paramagnetic conductive ring surrounding said pivot axis D for driving said mobile 50 by eddy currents.

The invention also relates, inside the watch, an automatic winding watch 10 comprising at least one mechanical oscillating mass 3 for recharging mechanical energy of at least one accumulator such a barrel.

According to the invention this winding device 10 comprises, in addition or instead of this at least one mechanical oscillating weight 3, at least one such winding 50 presented above.

In particular, at least one winding mobile 50 comprises at least one cutout 40.

The invention also relates to a watch movement 100 comprising at least one mechanical energy accumulator such as a barrel, and at least one such automatic winding 10.

The invention also relates to a watch 200 with automatic winding, comprising at least one such movement 100, and / or at least one mechanical energy accumulator such a barrel, and at least one such automatic winding 10.

In another implementation of the invention, the watch 200 comprises, for the mechanical energy recharging of at least one accumulator such a barrel, a paramagnetic conductive disc 20 arranged for recharging mechanical energy at least one accumulator such as a cylinder, or several such disks 20.

The invention also relates to a device 300 for automatic watch winding, comprising at least one power supply means or an electric accumulator, and at least one receptacle support 301 for a watch.

The power supply means or the electric accumulator is advantageously housed in a pedestal dressed photovoltaic cells 309, as shown in FIG. 1, so as to supply electric means for generating fields.

This receptacle support 301 comprises a bearing surface 302 for receiving the bottom of a watch.

According to the invention, this device 300 comprises generation means 310 of a magnetic and / or electrostatic field arranged in a fixed position at a transmission zone 303 under this bearing surface 302, and which generate, at at least one track 340, at least one magnetic and / or electrostatic field called "rotating" direction and / or intensity and / or direction variable as a function of time.

In a particular embodiment according to FIG. 8, the track 340 comprises at least one linear segment 307 of a substantially linear emission zone 303. The generating means 310 generate, at this at least one linear segment 307, at least one magnetic and / or electrostatic field of substantially orthogonal or orthogonal direction at the bearing surface 302 and intensity and / or sense varies with time.

FIG. 9 illustrates a variant where the track 340 comprises several such disjoint linear segments 307A, 307B: at each of them is exerted successively such a rotating field.

In a preferred embodiment illustrated in FIG. 7, the track 340 comprises at least one angular sector 304 of a substantially annular emission zone 303. The generating means 310 generate, at this at least one angular sector 304, at least one magnetic and / or electrostatic field of substantially orthogonal or orthogonal direction at the bearing surface 302 and intensity and / or sense varies with time.

In a particular embodiment, the generation means 310 generate, on the emission zone 303, a plurality of such magnetic and / or electrostatic fields, parallel to each other in orthogonal direction to the support surface 302 and each of Intensity and / or of varying direction as a function of time.

In an advantageous embodiment as visible in FIG. 1, the generation means 310 comprise a network of coils 305 at all or part of the transmission zone 303.

In a particular implementation illustrated by FIGS. 1, 7, 8, and 9, the generating means 310 generate the magnetic and / or electrostatic field on an angular sector 304 centered on a median axis of the bearing surface 302 and less than 240 ° back and forth alternating from one end to the other of this angular sector 304. The axis D of the winding of the watch to go up is substantially coincident with this median axis when the watch is placed by its bottom 201 on the bearing surface 302.

The trajectory 308 of the receiving track of the drive wheel 50 is illustrated in FIGS. 8 and 9. FIG. 7 shows the limits 306 of the transmission zone 303 actually active in such a case. Note that the generation means 310 may be, if necessary, controlled to reverse the fields and brake the mobile 50 if its speed is too high.

In another implementation, the generating means 310 generate the magnetic field and / or electrostatic in a uniform direction of rotation over all 360 ° of the bearing surface 302.

Naturally, the physical production means of the rotating fields may be identical, for example a complete annular network of coils 305, which, depending on the selected management mode, some or all are activated. For this purpose, the device 300 advantageously comprises regulation and control means 320 for controlling the generation means 310.

In this preferred case, the control and control means 320 comprise time management means and control the generation of the magnetic field and / or electrostatic at preset times or resulting from the reception of a signal.

These control and control means 320 control the generation of the magnetic and / or electrostatic field in the form of a so-called "rotating" field with a speed Ω of rotation along the angular sector 304 or the transmission zone 303. .

In a particular management mode, the regulation and control means 320 accelerate the speed Ω of rotation of said rotating field, from the start time of the generation of the field to a stop instant of acceleration after a predefined time.

Advantageously, the regulation and control means 320 comprise receiving means 330 arranged for measuring position and / or speed of a winding wheel 50 driven under the effect of the variation of the magnetic field and / or or electrostatic, and are able to exert reversal fields in case of excessive speed of rotation of a mobile 50.

It is understood that, if the transmission zone 303 comprises, preferably, coils - or, more generally, field generation means - over its entire periphery, the regulation and control means 320 allow to define particular cycles of variation of the fields. For example, it is possible to first move a moving mass in an alternating motion of a certain amplitude, then to modify this amplitude, or even to transform the reciprocating movement into a continuous movement. This tool is extremely flexible, and is limited only by the capabilities of the control means 320.

The invention also relates to a watch assembly 400 comprising such a device 300, and at least one such watch 200.

According to the invention, the device 300 of this set 400 comprises such control and control means 320 for the control of the generation means 310, and these control and control means 320 and these generation means 310 are adapted and formatted for driving at least one winding mobile 50 which comprises: - either at least one "oscillating" magnetic mass 1, or a "oscillating" mass 5 called magnet, that includes this at least one watch 200, for recharging the mechanical energy of at least one cylinder or accumulator, or at least one paramagnetic conductive disk coaxial with the mechanical "oscillating" mass 3, which this at least one watch 200 comprises, and arranged as this "oscillating" mechanical mass 3 for recharging mechanical energy of at least one cylinder or accumulator, - or at least one "oscillating" magnetic mass 1 that includes this at least one watch 200, and at least one paramagnetic conductor disk 20 coaxial with the mechanical "oscillating" mass 3, which includes both the at least one watch 200 for the mechanical energy charging of at least one cylinder or accumulator, for the driving, as the case may be, of the at least one "oscillating" magnetic mass 1 or "oscillating" mass 5 called magnet by magnetic coupling, and / or of this at least one disk 20 by eddy currents.

The invention allows different winding architectures within the watch.

It is thus possible to dissociate the functions of mechanical winding and magnetic / electrostatic winding / eddy currents, for example with elements each dedicated to one of these functions, oscillating on one another, integral or not. , coupled or not, and preferably coaxial. This allows the optimization of each of these elements for its own function, and, overall, allows the limitation of the bulk and weight of the winding mechanism.

We can provide the paralleling (or series) mechanical winding functions by submission of the watch to accelerations of magnetic / electrostatic origin / eddy currents.

It is easy, thanks to the invention, to transform a watch already having a conventional mechanical oscillating weight, by adding another reloading mobile, magnetic oscillating mass, magnet oscillating mass, or paramagnetic conductive disk.

Each of these mobiles can attack the energy accumulator, either unitarily or by the same mechanism as the already existing mechanical oscillating weight.

The fact of dissociating the functions allows, again, to have a rotary movement for the mechanical winding, and another movement, for example in translation for the magnetic part, or vice versa. In this case, it is necessary to couple the two specific axes towards the barrel. The advantage is to open other mechanical options to move this movement in translation on a more restricted area of the movement. In this case, there is movement back and forth along an axis, and more only according to an angular sector.

In case of alternative operation, the back and forth may be limited, either by the control and control means 320, or by a mechanical limitation, or the combination of these two solutions.

The complete, continuous, and accelerated rotation of the mobile winding 50 is a special case that strongly personalizes the watch assembly according to the invention.

When the so-called "rotating" field is in fact alternative, it can, in a simplified embodiment, be alternated in two positions on the same axis, which is very simple to do in a winder.

Another solution consists in setting up a magnet that moves on an axis in the winding device, and in translation drives the magnetic oscillating mass 1 or the magnet oscillating mass 5, as the case may be, of the side of the watch 200.

Most of the usual movements are bidirectional winding, for which the torque is about the same in both directions.

As regards unidirectional winding movements, the mass is almost free in one direction.

The unbalance of the mass generally varies from 70 to 300 μΝ / m.

The inertia is of the order of 200 g / mm 2.

An example of dimensioning is based on the "ETA A16" movement: a 100% reinforced barrel retains the oscillating weight in an angle of 25 ° to 45 °, which corresponds to a maximum torque of 210 μΝ / m ( = unbalance x sin 45 °).

To achieve a rotation of the mass of 90 °, it is necessary to add the unbalanced couples and spring barrel, about 500 μΝ / m.

To ensure the recharge, it is necessary to exceed the dead angles of the ratchet wheels and the barrel ratchet, that is to say it requires a useful angular displacement of at least 30 ° to cross the notch of ratchet of the reversing mechanism and the ratchet catch of the cylinder lock.

For reassembly by the crown, it should not exceed, at the rod, a speed of 100 revolutions / min, which is equivalent to a speed of 4000 revolutions / min of the oscillating mass.

It typically takes 2000 turns of oscillating mass to completely wind the watch, for at least 72 hours of power reserve.

The sintered tungsten has a density of about 18 g / cm3.

The heart of the oscillating mass is generally brass, with a thickness of the order of 0.3 to 0.4 mm.

Claims (25)

It is possible to mix tungsten beads with iron beads. The winding device 300 according to the invention allows, with a speed of rotation Ω of 5 revolutions per second, to perform a complete reassembly of any watch in less than 5 minutes. The gap between the coils 305 and the mobile winding 50 is chosen in the range of 2 to 3 mm. claims 1. Mobile winding (50) automatic watch winding comprising a guide (2) at its pivot axis (D) and inscribed in a cylinder of maximum radius (RMAX), and comprising drive means of a mechanism for recharging energy, characterized in that said mobile (50) comprises, or at least one ferromagnetic or magnetized portion for driving said mobile (50) by a variable magnetic field, or an electrically charged portion for driving said mobile (50) by a variable electrostatic field, or a paramagnetic conductive ring surrounding said pivot axis (D) for driving said mobile (50) by eddy currents. 2. Mobile winding (50) according to claim 1, characterized in that it comprises at least one mass in magnetic movement (1), which comprises a first ferromagnetic inner portion (8) extending on radii below the radius minimum (RMIN) of a second peripheral portion (9) of heavy metal of atomic number between 73 and 79, or of alloy comprising at least 80% of at least one heavy metal of atomic number between 73 and 79. 3. Mobile winding (50) according to claim 2, characterized in that said second peripheral portion (9) comprises at least 50% tungsten. 4. Mobile winding (50) according to claim 2, characterized in that said second peripheral portion (9) comprises at least 50% of tungsten and at least 20% of gold. 5. Mobile winding (50) according to one of claims 2 to 4, characterized in that said first inner portion (8) is made of magnetically soft material. 6. Mobile winding (50) according to claim 1, characterized in that it comprises at least one moving mass (5) magnet, comprising at least one component made of magnetically hard material (6) eccentric relative to said guide ( 2). 7. mobile reassembly (50) according to claim 1, characterized in that it comprises at least one electrically charged portion for driving said mobile (50) by a variable electrostatic field, which comprises electrets. 8. Mobile winding (50) according to claim 1, characterized in that it comprises at least one disc (20) having at least one paramagnetic conductive ring surrounding said pivot axis (D) for driving said mobile (50). ) by eddy currents. 9. mobile reassembly (50) according to claim 8, characterized in that said at least one disc (20) is silver, or platinum, or aluminum, or a paramagnetic alloy comprising at least 50% of the one of these metals. 10. automatic watch winder (10) comprising at least one mass in mechanical movement (3) for recharging mechanical energy of at least one barrel or accumulator, characterized in that said winding (10) comprises, in complement or in place and place of said at least one mass in mechanical movement (3), at least one mobile winding (50) according to one of claims 1 to 9. 11. Watch movement (100) comprising at least one mechanical energy accumulator such as a barrel, and at least one automatic winding (10) according to claim 10. 12. Watch (200) with automatic winding, comprising at least one movement (100) according to the preceding claim, and / or at least one mechanical energy accumulator such a barrel, and at least one automatic winding (10) according to the claim 10. 13. Device (300) for automatic watch winding, comprising at least one power supply means or an electric accumulator, and at least one receptacle support (301) for a watch according to claim 12, said receptacle support (301) comprising a bearing surface (302) intended to support the bottom of the watch, characterized in that said device (300) comprises means for generating (310) a magnetic and / or electrostatic field arranged in a fixed position at the level of an emission zone (303) under said bearing surface (302) and generating, at at least one track (340), at least one magnetic and / or electrostatic, directional and / or Intensity and / or of varying direction as a function of time. 14. Device (300) according to claim 13, characterized in that said track (340) comprises at least one linear segment (307) of a substantially linear emission zone (303), at which at least one linear segment (307) said generating means (310) generates at least one magnetic and / or electrostatic field of direction orthogonal to said bearing surface (302) and of intensity and / or of direction that is variable as a function of time. 15. Device (300) according to claim 13, characterized in that said track (340) comprises at least one angular sector (304) of a substantially annular emission zone (303), at which at least one angular sector (304) said generating means (310) generates at least one magnetic and / or electrostatic field of direction orthogonal to said bearing surface (302) and of intensity and / or of variable direction as a function of time. 16. Device (300) according to one of claims 13 to 15, characterized in that said generating means (310) generate, on said emission zone (303), a plurality of said magnetic and / or electrostatic fields, parallel to each other orthogonal direction to said bearing surface (302) and each intensity and / or direction as a function of time. 17. Device (300) according to one of claims 13 to 16, characterized in that said generating means (310) comprise an array of coils (305) at all or part of said transmission area (303) . 18. Device (300) according to one of claims 13 to 17, characterized in that said generating means (310) generate said magnetic field and / or electrostatic on an angular sector (304) centered on a median axis of said surface support (302) and less than 240 ° reciprocating from one end to the other of said angular sector (304). 19. Device (300) according to one of claims 13 to 18, characterized in that said generating means (310) generate said magnetic field and / or electrostatic in a uniform direction of rotation over all 360 ° of said surface support (302). 20. Device (300) according to one of claims 13 to 19, characterized in that it comprises control means and control (320) for controlling said generating means (310). 21. Device (300) according to the preceding claim, characterized in that said regulating means and control (320) comprise time management means and control the generation of said magnetic field and / or electrostatic at preset times or resulting from receiving a signal. 22. Device (300) according to claim 20 or 21, characterized in that said regulation and control means (320) control the generation of said magnetic field and / or electrostatic in the form of a so-called rotating field with a speed (Ω ) of rotation along said angular sector (304) or said emission zone (303). 23. Device (300) according to the preceding claim, characterized in that said regulating means and control (320) accelerate said speed (Ω) of rotation of said rotating field, from the start time of the generation of said field until at a stop instant of acceleration after a predefined duration. 24. Device (300) according to one of claims 20 to 23, characterized in that said control means and control (320) comprise receiving means (330) arranged for the measurement of position and / or speed of a mobile driven under the effect of the variation of said magnetic field and / or electrostatic. 25. watch assembly (400) comprising a device (300) according to one of claims 13 to 24, and at least one watch (200) according to claim 12, characterized in that said device (300) comprises regulating means and control (320) for controlling said generating means (310), and said regulating and controlling means (320) and said generating means (310) are adapted and formatted for driving: - or else at least one mass in magnetic movement (1) that comprises said at least one watch (200) for recharging mechanical energy of at least one mechanical energy accumulator, such as a barrel. or at least one paramagnetic conductor disc (20) coaxial with said mass in mechanical movement (3), which comprises said at least one watch (200), and arranged as said at least one mass in mechanical movement (3) for recharging the mechanical energy of at least one mechanical energy accumulator, such as a barrel. - Or at least one mass in magnetic movement (1) that comprises said at least one watch (200), and at least one conductive disc (20) paramagnetic conductor coaxial with said mass in mechanical movement (3), that comprises at least said at least one watch (200) for recharging mechanical energy of at least one mechanical energy accumulator, such as a barrel for driving, as the case may be, of said at least one moving mass magnet (1) by magnetic coupling, and / or said at least one disk (20) by eddy currents.