EP4174586B1 - Ensemble horloger comprenant une montre et un système de correction de l'heure - Google Patents

Ensemble horloger comprenant une montre et un système de correction de l'heure Download PDF

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Publication number
EP4174586B1
EP4174586B1 EP22189339.9A EP22189339A EP4174586B1 EP 4174586 B1 EP4174586 B1 EP 4174586B1 EP 22189339 A EP22189339 A EP 22189339A EP 4174586 B1 EP4174586 B1 EP 4174586B1
Authority
EP
European Patent Office
Prior art keywords
mechanical
correction
magnetic field
watch
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22189339.9A
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German (de)
English (en)
French (fr)
Other versions
EP4174586A1 (fr
Inventor
Jérôme Favre
Jean-Jacques Born
Matthias Imboden
Cédric Nicolas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Swatch Group Research and Development SA
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Swatch Group Research and Development SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP4174586A1 publication Critical patent/EP4174586A1/fr
Application granted granted Critical
Publication of EP4174586B1 publication Critical patent/EP4174586B1/fr
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
    • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the balance
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1271—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork)
    • G04D7/1292—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork) whereby the adjustment device works on the balance wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/007—Mechanical devices for setting the time indicating means otherwise than manually
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/004—Optical measuring and testing apparatus
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1264—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for complete clockworks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1271—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for the control mechanism only (from outside the clockwork)

Definitions

  • the invention relates to a watch, incorporating a mechanical movement provided with a mechanical oscillator, and a system for correcting the time displayed by the watch other than a mechanical control member, in particular a crown stem, operable by a user .
  • the document WO2021/121711 describes a timepiece equipped with a mechanical movement and incorporating a device for correcting the time which is displayed by the timepiece.
  • the correction device is of the electronic type and comprises an electronic unit for receiving a correction signal, supplied by a device external to the timepiece (in particular a mobile telephone), an electromechanical actuator forming a braking device for the resonator mechanism incorporated in the mechanical movement, and an electronic unit for controlling the electromechanical actuator as a function of the correction signal received, this electronic unit being arranged in the timepiece.
  • the correction device incorporated in the timepiece nevertheless includes electronic elements.
  • the known device of the document CH 714 264 A2 shows a time setting means comprising means for driving a stepper motor of an electromechanical watch. This document shows neither movement with a mechanical oscillator, nor a magnetic field generator capable of exciting a mobile magnetic element to generate braking pulses applied to the oscillating mechanical resonator.
  • the present invention aims to provide a watch assembly making it possible to correct the time displayed by a mechanical watch precisely and/or advance/delay the time display by one hour when changing to the current time. summer / winter without a user having to operate a mechanical control member connected to the analog time display.
  • the present invention relates to a watch assembly
  • a watch assembly comprising a watch, formed of a box and a mechanical movement incorporated in the box, and a support which is external to the watch and arranged to be able to support at least the box.
  • this watch in particular a display or a box.
  • the mechanical movement comprises an analog time display, a drive mechanism for this analog time display and a mechanical oscillator, the mechanical resonator of which is formed by a balance wheel and an elastic return structure, this mechanical oscillator being arranged to be able to clock the operation of the drive mechanism.
  • the watch assembly comprises a system for correcting a time displayed by the analog display, this correction system being formed, on the one hand, by a mechanical device incorporated in the box and, on the other hand, by a device electric incorporated in the support.
  • the mechanical device comprises a movable magnetic element, in particular a magnet, which is configured and arranged in the watch in such a way that the mechanical device can brake the oscillating mechanical resonator or momentarily stop an oscillation of the mechanical resonator by exciting the movable magnetic element with a field magnetic, in particular by applying a magnetic force on the magnet by means of a magnetic field produced by the electrical device.
  • the electrical device comprises a magnetic field generator, this magnetic field generator and said box being arranged in such a way that, when the watch case is placed on the external support in a given position, a magnetic field produced by the magnetic field generator can pass through the box and reach the region where the movable magnetic element is located and excite the latter so as to generate, via the mechanical device, braking pulses which are applied to the oscillating mechanical resonator or to momentarily stop an oscillation of the mechanical resonator by the mechanical device.
  • the electrical device further comprises a control unit arranged so as to be able to produce an electrical control signal as a function of a correction determined for the time displayed by the analog display and to supply this electrical control signal to the magnetic field generator so that it generates a corresponding magnetic field which activates the mechanical device so that this mechanical device generates a series of braking pulses which are applied to the oscillating mechanical resonator or momentarily stops an oscillation of the mechanical resonator, so as to substantially effect the determined correction of the displayed time.
  • a control unit arranged so as to be able to produce an electrical control signal as a function of a correction determined for the time displayed by the analog display and to supply this electrical control signal to the magnetic field generator so that it generates a corresponding magnetic field which activates the mechanical device so that this mechanical device generates a series of braking pulses which are applied to the oscillating mechanical resonator or momentarily stops an oscillation of the mechanical resonator, so as to substantially effect the determined correction of the displayed time.
  • the watch assembly it is possible to correct the time displayed by the watch or set the analog display to summer time or winter time, at the planned date, precisely, taking care to place the watch case, in a given position, on the support associated with the watch.
  • the correct time setting can be triggered automatically by closing a cover on the support or by pressing an actuation button on the support or via any sensor associated with the support or possibly via a mobile phone having an application that allows sending a system activation signal correction to a receiver arranged in the support.
  • the support is advantageously a box, a case or a display connected to the sector, or autonomous with batteries, or even equipped with a solar energy sensor.
  • a major advantage of the invention lies in the fact that no electrical element is necessary in the case of the watch, which can therefore be entirely mechanical, that is to say without an electronic unit or other electrical device, the watch case incorporating a fully mechanical movement and a mechanical device comprising a movable magnetic element, in particular a magnet.
  • the electrical device of the correction system according to the invention is located outside the watch case and is materially independent of the watch, so that the watch can be worn by a user without the electrical device, which remains linked to the support exterior on which the watch can be temporarily placed, in particular during at least part of the night.
  • the watch assembly 2 comprises a watch 4, formed by a box 6 and a mechanical movement 8 incorporated in the box, and an external support formed by a box 22 for this watch.
  • the mechanical movement includes an analog display 10 of the current time, a drive mechanism (not shown in the Figure 2 ) of this analog display and a mechanical oscillator whose mechanical resonator 12 is formed by a balance 14 and an elastic return structure 13 (a hairspring in Fig. 2, but flexible blades or other flexible structures can alternatively be provided), this mechanical oscillator being arranged to be able to clock the operation of the drive mechanism.
  • the watch assembly 2 comprises a correction system 16 for a time displayed by the analog display, this correction system being formed, on the one hand, by a mechanical device 18 incorporated in the box 6 and, on the other hand , by an electrical device 20 incorporated in the support external to the watch.
  • the electrical device 20 comprises a magnetic field generator formed by a coil 28 powered according to an electrical control signal supplied by a control unit 30.
  • the magnetic field generator, in particular the coil 28, and the box 6 are arranged so that, when the watch is placed on the support in a given position ( Figure 1 ), a magnetic field produced by the magnetic field generator can pass through the box, the material of which is selected for this purpose at least in the region of the box crossed by the magnetic field useful for the correction system.
  • the mechanical device 18 comprises a permanent magnet 24 and a flexible blade 26 carrying this permanent magnet in a region of a free end of this flexible blade, which is anchored to the watch movement at its other end (alternatively, the anchoring is provided on a caging circle or on an interior wall of the box 6).
  • the mechanical device 18 is arranged in the watch so that it can, under the action of a magnetic field generated by the electrical device and applied to the permanent magnet 24, periodically brake the oscillating mechanical resonator or momentarily stop an oscillation of this mechanical resonator by exerting a mechanical force/pressure on the balance wheel.
  • the flexible blade 26 is arranged so as to be able to exert a force/pressure against an exterior lateral surface of the balance 14, when the permanent magnet undergoes a radial magnetic force by the action of said magnetic field, and thus generate periodic braking pulses or stop the mechanical resonator 12 during a determined time interval, which depends on the function to be performed.
  • the box 22 has a part 34 against which the case 6 of the watch 4 placed in this box is substantially laterally supported in a given position so that the correction system 16 is effective.
  • the magnetic field generator, formed by the coil 28, and the box 6 are arranged in such a way that the magnetic field produced by this field generator can reach, from one side of the watch, the region where the permanent magnet 24 is located with sufficient intensity to be able to exert a radial magnetic force on this permanent magnet capable of generating, via the flexible blade, braking pulses which are applied to the mechanical resonator oscillating, namely on the outer lateral surface of the balance 14, or to momentarily stop an oscillation of the mechanical resonator under the radial force/pressure exerted by the mechanical device 18 on the mechanical resonator, which generates a force torque on the balance via the friction force (dry friction) between the flexible blade and said outer side surface of the balance.
  • the control unit 30 is arranged so as to be able to produce an electrical control signal as a function of a correction determined for the time displayed by the analog display 10 and to supply this electrical control signal to the magnetic field generator 28 for that it generates a corresponding magnetic field which activates the mechanical device 18 so that this mechanical device generates a series of braking pulses applied to the oscillating mechanical resonator or momentarily stops an oscillation of the mechanical resonator, so as to substantially carry out the determined correction of the displayed time.
  • the box 22 can be supplied with electricity via a cable 36 or via contactless power supply means.
  • the model shown includes a digital display 38 allowing for example to give various information, in particular the current date, the time zone or a date of change from winter time to summer time and vice versa.
  • Data entry means can be provided in an area of the box.
  • the reading of various data recorded in an electronic part of the box (for example in the control unit 30) and also the transmission of data to this electronic part is provided via a wireless communication unit arranged in the box and allowing communication with a mobile phone having an application for this purpose.
  • the box 22 comprises an electronic device for determining a correction to be made for the time displayed by the watch, that is to say by the analog display 10.
  • This electronic device comprises a photographic device 40 comprising a photographic sensor formed from a matrix of photodetectors. Then, the electronic device comprises an image processing unit which is arranged to be able to determine the position of at least one determined needle of the analog display 10 in an image taken by the photographic device 40. Finally, the electronic device comprises or is connected to a time base capable of providing a precise current time and it further includes a comparison unit to determine the correction to be made.
  • a mobile phone equipped with an appropriate application is provided to take a photo of the analog display of the watch 4, then to process the image as indicated above, and finally determine a correction for the time displayed.
  • This mobile phone then sends to the electronic unit of the box, via a wireless communication unit, a correction signal indicating the correction to be made and possibly a time to start said correction or a time interval until the start of this correction .
  • the box 22A with the exception of the arrangement of the electrical device 16A of the correction system, is similar to that of the first embodiment described previously, and will not be described in more detail below.
  • the watch assembly 42 is mainly distinguished from the first embodiment by the arrangement of the correction system 16A with a mechanical device 18A arranged so that its permanent magnet 24A is mobile, under the action of an axial magnetic force, substantially in a direction parallel to the central axis of the watch 4A, this central axis being perpendicular to the dial of the analog display and to the general plane of the bottom 48 of the box 6 (this bottom having been removed from the Figures 3 and 4 to show the 8A mechanical movement inside the box).
  • the mechanical device 18A is formed by an elastic structure comprising a flexible blade 26A folded on itself and anchored, at its first end, to a casing circle 44 surrounding the mechanical movement 8A.
  • the flexible blade carries, at its second end which is free, a disk, on which the permanent magnet 24A is stuck, and a finger 46 connected to the disk.
  • THE finger 46 is arranged so as to be heard radially under the rim of the balance 14, at a short distance from this rim.
  • the elasticity of the flexible blade 26A is designed to ensure a certain stability of the magnet 24A and the finger 46 in the absence of a magnetic field for actuating this magnet and also good dynamic behavior of the mechanical device 18A during the generation of an axial magnetic field 52 by the electrical device 20A, this axial magnetic field making it possible to generate braking pulses by dry friction between the finger 46 and a circular upper surface of the balance wheel against which the finger briefly presses, which then applies pressure 54 to said upper circular surface.
  • the finger thus forms a braking pad for the balance wheel.
  • FIG. 5A shows the correction system 42 with the inactive magnetic field generator and the elastic blade 26A, carrying the permanent magnet 24A, in its rest position; while Figure 5B shows the correction system with the magnetic field generator (coil 28) generating a magnetic field 52 for actuating the mechanical device 18A and the elastic blade 26A carrying the permanent magnet 24A in its braking position of the balance 14.
  • the electrical device 20A is arranged in the support 22A and the mechanical device 18A is arranged in the watch 4A.
  • the axial magnetic field 52 passes through the bottom 48 of the box 6 and propagates in the region of the permanent magnet 24A, on which it acts in magnetic attraction.
  • the bottom material 48, at least in the region superimposed on the coil 28, is provided in a non-magnetic material or in a material conducting the magnetic field (having high magnetic permeability).
  • the watch of the watch assembly 58 comprises, in the mechanical device 18B of the correction system 16B, a magnetic parking element which is arranged so as to return, over at least a certain distance of movement of the permanent magnet 24A from a rest position of the latter, the permanent magnet towards this rest position in which it does not touch the balance and in which it is normally maintained, in particular by the magnetic parking element, in the absence of the magnetic field produced by the magnetic field generator (coil).
  • the aforementioned magnetic element is either a ferromagnetic positioning element or a positioning magnet 60 as shown in Fig. Figure 6 .
  • This positioning magnet is configured to continuously exert a magnetic force in magnetic attraction on the permanent magnet 24A in its rest position, with an intensity such that the positioning magnet can, at least in the absence of shocks or strong accelerations of the watch, avoid unwanted braking pulses in the absence of the generation of the magnetic field 52 by the electrical device 20A, while ensuring that the magnetic field 52 generated by the coil 28 can easily overcome the force of attraction of the positioning magnet 60 to generate the braking pulses making it possible to carry out a determined correction of the displayed time.
  • the coil 28 and its power supply, managed by the electronic control unit 30, are arranged so that the magnetic field 52 has sufficient intensity.
  • the magnetic field generator is a movable permanent magnet or a fixed magnet associated with a movable magnetic shield, the movable magnet or the movable magnetic shield being arranged in the support so as to be able to be moved by an actuator to which the electrical control signal is supplied, so as to vary the intensity of the magnetic field supplied to said mechanical device as a function of the electrical control signal.
  • the control unit 30 of the electrical device comprises a device generating at least one frequency which is arranged so as to be able to generate a first periodic signal at a frequency F SUP .
  • the control unit is arranged to supply the magnetic field generator, when the determined correction corresponds to a delay in the displayed time which it is planned to correct and when this correction therefore consists of advancing the display by the current time relative to a flow of time given by the undisturbed mechanical oscillator, a first control signal derived from the first periodic signal, during a first correction period, to activate the correction system so that it generates a first series of periodic braking pulses which are applied to the balance of the mechanical resonator by the mechanical device at the frequency F SUP .
  • the duration of the first correction period and therefore the number of periodic braking pulses in said first series are determined by said delay to be corrected.
  • the frequency F SUP is provided and the mechanical device incorporated in the watch is arranged so that the first series of periodic braking pulses at the frequency F SUP can generate, during the first correction period, a first synchronous phase in which the oscillation of the mechanical resonator is synchronized to a correction frequency FS Cor which is greater than a set frequency F0c provided for the mechanical oscillator. The progress of the mechanical movement is thus accelerated during the first correction period.
  • the correction system is entirely incorporated into the watch.
  • the watch includes a sensor to itself detect a temporal drift in the operation of the mechanical oscillator and therefore of the watch movement.
  • Teaching relating to the generation of the diverse above-mentioned signals and periodic braking pulses, in the case of a delay to be corrected, is however similar.
  • the device generating at least one frequency is arranged so as to be able to also generate a second periodic signal at a frequency F INF .
  • the control unit is arranged to supply the magnetic field generator, when the determined correction corresponds to an advance in the displayed time which it is planned to correct and when this correction therefore consists of delaying the display of the current time relative to a flow of time given by the undisturbed mechanical oscillator, a second control signal derived from the second periodic signal, during a second correction period, to activate the correction system so that this correction system generates a second series of periodic braking pulses which are applied to the balance wheel by the mechanical device at the frequency F INF .
  • the duration of the second correction period and therefore the number of periodic braking pulses in said second series are determined by said advance to be corrected.
  • the frequency F INF is provided and the mechanical device is arranged so that the second series of periodic braking pulses at the frequency F INF can generate, during the second correction period, a second synchronous phase in which the oscillation of the mechanical resonator is synchronized to a correction frequency Flcor which is lower than the set frequency F0c provided for the mechanical oscillator. The progress of the mechanical movement is thus slowed down during the second correction period.
  • the mechanical device of the correction system is arranged so as to be able to block the mechanical resonator under the action of a field magnetic, generated by the magnetic field generator, which is applied to the mobile magnetic element, so as to momentarily stop an oscillation of this mechanical oscillator during a correction period.
  • the control unit is arranged to be able, when the determined correction corresponds to an advance in the displayed time and the correction to be made therefore consists of delaying the analog display of the current time relative to a passage of time given by the mechanical oscillator not disturbed, supply a third control signal to the magnetic field generator so that it activates the mechanical device so that this mechanical device blocks the oscillation of the mechanical resonator during the correction period which is determined by said advance to be corrected, so as to stop the operation of said drive mechanism during this correction period.
  • the blocking of the mechanical oscillator is carried out by the elastic member 26, respectively 26A pressing continuously on the rim of the balance 14 during the correction period.
  • the magnetic field generator generates a magnetic field continuously during the correction period.
  • the correction system is arranged so as to be able to correct the displayed time by 60 minutes in the space of one night, to make a change to the time of summer or winter time.
  • control unit 30 is associated with an electronic device arranged to determine a correction to be made on a given date or as a function of the current time displayed by the watch.
  • determination of the correction to be made is carried out in a device external to the external support, in particular in a mobile telephone comprising an application for this purpose.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
EP22189339.9A 2021-10-29 2022-08-08 Ensemble horloger comprenant une montre et un système de correction de l'heure Active EP4174586B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21205505 2021-10-29

Publications (2)

Publication Number Publication Date
EP4174586A1 EP4174586A1 (fr) 2023-05-03
EP4174586B1 true EP4174586B1 (fr) 2024-05-29

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ID=78414480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22189339.9A Active EP4174586B1 (fr) 2021-10-29 2022-08-08 Ensemble horloger comprenant une montre et un système de correction de l'heure

Country Status (4)

Country Link
US (1) US20230132978A1 (zh)
EP (1) EP4174586B1 (zh)
JP (1) JP7446375B2 (zh)
CN (1) CN116068872B (zh)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120817B2 (zh) * 1973-12-24 1986-05-23 Citizen Watch Co Ltd
CH704331B1 (fr) * 2011-01-13 2015-05-15 Gfpi S A Pièce d'horlogerie.
EP2874023A1 (fr) * 2013-11-13 2015-05-20 ETA SA Manufacture Horlogère Suisse Pièce d'horlogerie comportant un découplage entre les moyens de transmission d'énergie et les moyens du comptage
EP3001259A1 (fr) * 2014-09-26 2016-03-30 ETA SA Manufacture Horlogère Suisse Dispositif régulateur de la marche d'un mouvement horloger mécanique
EP3252545B1 (fr) * 2016-06-03 2019-10-16 The Swatch Group Research and Development Ltd. Mécanisme d'horlogerie à réglage d'inertie de balancier
EP3333641B1 (fr) * 2016-12-06 2019-07-10 ETA SA Manufacture Horlogère Suisse Mécanisme horloger de commande d'une pluralité d'affichages
EP3339982B1 (fr) * 2016-12-23 2021-08-25 The Swatch Group Research and Development Ltd Régulation par freinage mécanique d'un oscillateur mécanique horloger
US11480925B2 (en) * 2017-03-28 2022-10-25 The Swatch Group Research And Development Ltd Mechanical timepiece comprising a movement which running is enhanced by a regulation device
CH714264B1 (fr) * 2017-10-23 2023-08-15 Winston Harry Sa Écrin pour montre électromécanique et ensemble le comprenant.
EP3537233A1 (en) * 2018-03-08 2019-09-11 IAV Engineering SARL Time setting device
EP3584645B1 (fr) * 2018-06-19 2021-06-30 The Swatch Group Research and Development Ltd Pièce d'horlogerie comprenant un mouvement mécanique dont la marche est régulée par un dispositif électromécanique
EP3620867B1 (fr) * 2018-09-04 2022-01-05 The Swatch Group Research and Development Ltd Pièce d'horlogerie comprenant un oscillateur mécanique dont la fréquence moyenne est synchronisée sur celle d'un oscillateur électronique de référence
EP3629104B1 (fr) 2018-09-27 2021-05-12 The Swatch Group Research and Development Ltd Piece d'horlogerie mécanique comportant un dispositif electronique de regulation de la précision de marche de la pièce d'horlogerie
JP7425707B2 (ja) * 2019-11-19 2024-01-31 シチズン時計株式会社 機械式時計の時刻合わせ装置、機械式時計及び機械式時計の時刻合わせシステム
EP4078298A1 (fr) 2019-12-17 2022-10-26 The Swatch Group Research and Development Ltd Piece d'horlogerie munie d'un mouvement mecanique et d'un dispositif de correction d'une heure affichee
EP3842876A1 (fr) * 2019-12-24 2021-06-30 The Swatch Group Research and Development Ltd Piece d horlogerie munie d'un mouvement mecanique et d'un dispositif de correction d'une heure affichee

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Publication number Publication date
CN116068872B (zh) 2024-09-20
JP7446375B2 (ja) 2024-03-08
CN116068872A (zh) 2023-05-05
US20230132978A1 (en) 2023-05-04
EP4174586A1 (fr) 2023-05-03
JP2023067757A (ja) 2023-05-16

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