Timepiece comprising a chronograph mechanism provided with a device indicating the operating status of the chronograph mechanism

The timepiece's simplified timing mechanism uses a coordinating member and status indicator device to indicate operating states without additional movable parts, addressing design and assembly complexities while improving accuracy and ease of maintenance.

HK40135060APending Publication Date: 2026-07-17OMEGA SA

Patent Information

Authority / Receiving Office
HK · HK
Patent Type
Applications
Current Assignee / Owner
OMEGA SA
Filing Date
2026-06-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing timekeeping mechanisms in watches complicate design, assembly, and maintenance due to the use of additional movable parts for indicating the operating status, leading to inaccuracies and difficulty in adjusting the status indicator.

Method used

A timepiece with a timing mechanism that includes a coordinating member actuating control levers and a status indicator device fixed to the coordinating member, providing visual information through alternately positioned portions, without additional movable parts, allowing simplified assembly and improved accuracy.

Benefits of technology

The solution provides additional visual information about the operating state of the timing mechanism without complicating the design or assembly, enhancing positioning accuracy and simplifying maintenance.

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Abstract

One aspect of the invention relates to a timepiece (1) comprising a timepiece movement (100) housed in a timepiece case, the timepiece movement comprising a time train (5) dedicated to time division and a timekeeping mechanism (200) comprising a timekeeping train (230) configured to be coupled to the time train on demand via a timekeeping start / stop control device (210), the timekeeping mechanism comprising a coordinating member configured to coordinate the timekeeping train (230) with the timekeeping start / stop control device (210). The coordination member rotates about a pivot axis whenever the timing start / stop control device is operated, and the coordination member directly actuates a set of control levers to provide a plurality of operating states of the timing mechanism, the timing mechanism comprising a state indicator device fixed to the coordination member for rotation therewith, the status indicator device includes a first portion presenting a first item of information and a second portion presenting a second item of information, each portion of the status indicator device being alternately positioned to face an aperture in a mask layer included in the timepiece whenever the timepiece start / stop control device is operated.
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Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202510347069.X (22) Application Date 2025.03.24 (30) Priority Data 24180269.3 2024.06.05 EP (71) Applicant Omega S.A. Address Bian, Switzerland (72) Inventors G. Kiessling D. Clementon T. Pennino (74) Patent Agency China Patent Agency (Hong Kong) Limited 72001 Patent Attorneys Zou Songqing Zou Longhui (51) Int.Cl. G04F 7 / 08 (2006.01) (54) Title of the Invention: Timepiece with a Timing Mechanism Equipped with a Device for Indicating the Operating State of the Timing Mechanism (57) Abstract: One aspect of the present invention relates to a timepiece (1) comprising a watch movement (100) housed in a watch case, the watch movement comprising a time-running gear train (5) dedicated to time division and a timing mechanism (200) comprising a timing gear train (230), the timing gear train being configured to be coupled to the time-running gear train on demand via a timing start / stop control device (210), the timing mechanism comprising a coordinating member that rotates about a pivot axis whenever the timing start / stop control device is operated, and the coordinating member directly actuating a set of control levers to provide multiple operating states of the timing mechanism, the timing mechanism comprising a status indicator device fixed to the coordinating member for rotation therewith, the status indicator device comprising a first portion presenting a first information item and a second portion presenting a second information item, each portion of the status indicator device being alternately positioned to face a hole in a shield layer included in the timepiece whenever the timing start / stop control device is operated. Claims 1 page, Description 6 pages, Drawings 5 ​​pages, CN 121069728 A 2025.12.05 CN 1 21 06 97 28 A 1. A timepiece (1), the timepiece comprising a watch movement (100) housed in a case (3), the watch movement (100) comprising a time-running gear train (5) dedicated to time division and a timing mechanism (200), the timing mechanism (200) comprising a timing gear train (230), the timing gear train being configured to be coupled to the time-running gear train (5) on demand via a timing start / stop control device (210), the timing mechanism (200) comprising a coordinating member (18), whenever the timing start / stop control device (210) When operated, the coordinating member (18) rotates about a pivot axis (P2), and the coordinating member directly actuates a set of control levers to provide multiple operating states of the timing mechanism (200), characterized in that the timing mechanism (200) includes a state indicator device (50) fixed to the coordinating member (18) for rotation therewith, the state...The status indicator device (50) includes a first portion (51.1) presenting a first information item (V1) and a second portion (51.2) presenting a second information item (V2) different from the first information item (V1), wherein each portion (51.1, 51.2) of the status indicator device (50) is alternately positioned to face the hole (25) in the shielding layer (30) included in the timepiece (1) whenever the timing start / stop control device (210) is operated. 2. The timepiece (1) according to claim 1, wherein the coordinating member (18) is a timing cam (18). 3. The timepiece (1) according to the preceding claim, wherein the timing cam (18) includes at least one shuttle (18.1, 18.2), and the status indicator device (50) is rigidly connected to the at least one shuttle (18.1, 18.2). 4. The timepiece (1) according to the preceding claims, characterized in that the status indicator device (50) is rigidly connected to the at least one shuttle (18.1, 18.2) by being driven into the shuttle or threaded onto the shuttle. 5. The timepiece (1) according to the preceding claims, characterized in that the status indicator device (50) is rigidly connected to the at least one shuttle (18.1, 18.2) at a distance from the pivot axis (P2) of the timing cam (18) by being driven into the shuttle or threaded onto the shuttle. 6. The timepiece (1) according to any one of claims 1 to 3, characterized in that the status indicator device (50) and the at least one shuttle (18.1, 18.2) are integrally formed as a single piece. 7. The timepiece (1) according to any one of the preceding claims, characterized in that the case (3) includes a crystal (7), and wherein the shielding layer (30) is interposed between the watch movement (100) and the crystal (7) to allow the status indicator device (50) to be viewed through the hole (25) on the dial side of the watch movement (100). 8. The timepiece (1) according to the preceding claim, characterized in that the timepiece (1) includes a dial (6) fastened above the watch movement (100), and the shielding layer (30) is a layer applied to the dial (6) or formed from the dial (6). 9. The timepiece (1) according to any one of claims 1 to 6, characterized in that the case (3) includes a transparent back cover (4), and wherein the shielding layer (30) is interposed between the watch movement (100) and the transparent back cover (4) so ​​as to allow the status indicator device (50) to be viewed through the hole (25) on the rear side of the watch movement (100). 10. The timepiece (1) according to claim 9, characterized in that the shielding layer (30) is applied to the transparent back cover.A layer on the inner surface of the cover (4). 11. The timepiece (1) according to the preceding claim, characterized in that the masking layer (30) is ink applied to the inner surface of the transparent back cover (4) by digital printing. Claims 1 / 1 page 2 CN 121069728 A Timepiece Technical Field of a Timepiece Including a Timekeeping Mechanism Equipped with a Device for Indicating the Operating Status of a Timekeeping Mechanism

[0001] The present invention relates to a timepiece comprising a timekeeping mechanism.

[0002] More specifically, the present invention relates to a timekeeping mechanism equipped with a status indicator device for indicating to a user the status (running or stopped) of the timekeeping mechanism. Background Art

[0003] A timekeeping mechanism allows time to be measured on demand by means of multiple time counters (e.g., minute counters and second counters).

[0004] The timekeeping mechanism is actuated, stopped and reset by a control member (e.g., a button, which may or may not be separate). It is also known that watch movements include a single actuator that allows the timing mechanism to start, stop, and reset the individual counters by being pressed repeatedly.

[0005] It can be advantageous to provide the user with additional visual information about the status of the timing mechanism, i.e., whether the timing mechanism is running or stopped.

[0006] Patent document FR-866748 specifically proposes the use of a pointer that is actuated by turning a button.

[0007] Patent document CH-705439 also describes the use of a pointer facing the scale on the dial to indicate the status of the timing mechanism, the pointer being rigidly connected to a rotatable switch that cooperates with and supports the three-position shuttle of the timing mechanism.

[0008] However, these solutions are not entirely satisfactory because they complicate the design, assembly, and maintenance of watch movements.

[0009] Therefore, there is a need for improvements to watch movements equipped with timing mechanisms.

[0010] In this context, the present invention proposes a timepiece comprising a watch movement housed in a case, the watch movement comprising a time-running wheel train and a timing mechanism dedicated to time division, the timing mechanism comprising a timing wheel train configured to be coupled to the time-running wheel train on demand via a timing start / stop control device, the timing mechanism comprising a coordinating member that rotates about a pivot axis P2 whenever the timing start / stop control device is operated, and the coordinating member directly actuates a set of control levers to provide various operating states of the timing mechanism, characterized in that the timing mechanism comprises a status indicator device fixed to the coordinating member for rotation therewith, the status indicator device comprising a first portion presenting a first information item and a portion presenting an information item related to the first...The second part of the second information item is different from the information item. Whenever the timing start / stop control device is operated, each part of the status indicator is alternately positioned to face the hole in the mask included in the timepiece.

[0011] In addition to the features mentioned in the foregoing paragraphs, the timepiece according to the invention may have one or more of the following supplementary features, which may be considered individually or in any technically possible combination:

[0012] - The coordinating member is a timing cam;

[0013] - The timing cam includes at least one shuttle, and the status indicator device is rigidly connected to the at least one shuttle; Specification 1 / 6 page 3 CN 121069728 A

[0014] - The status indicator device is rigidly connected to the at least one shuttle by being driven into the shuttle or threaded onto the shuttle;

[0015] - The status indicator device is rigidly connected to the at least one shuttle at a certain distance from the pivot axis P2 of the timing cam by being driven into the shuttle or threaded onto the shuttle;

[0016] - The status indicator device and the at least one shuttle are integrally formed as a single piece;

[0017] - The case includes a crystal, and wherein the shielding layer is between the watch movement and the crystal. So that the status indicator device can be viewed through the hole on the dial side of the watch movement;

[0018] - The timepiece includes a dial, the dial being fastened above the watch movement, the shielding layer being a layer applied to the dial, or formed from the dial;

[0019] - The case includes a transparent back cover, and wherein the shielding layer is located between the watch movement and the transparent back cover so that the status indicator device can be viewed through the hole on the rear side of the watch movement;

[0020] - The shielding layer is a layer applied to the inner surface of the transparent back cover;

[0021] - The shielding layer is ink applied to the inner surface of the transparent back cover by digital printing.

[0022] The objects, advantages, and features of the present invention will be better understood upon reading the detailed description given with reference to the following accompanying drawings:

[0023] - FIG1 schematically shows a bottom view of a watch movement according to the present invention, the movement including a timing mechanism; more specifically, FIG1 illustrates the timing mechanism in a stopped state;

[0024] - FIG2 schematically shows a bottom view of the watch movement illustrated in FIG1 when the timing mechanism is running;

[0025] - FIG3 schematically shows a perspective view, which particularly illustrates the timing cam of the timing mechanism including a status indicator device according to the present invention;

[0026] - FIG4 schematically shows a rear view of the timepiece when the timing mechanism is stopped;

[0027] - FIG5 schematically shows a rear view of the timepiece when the timing mechanism is running;

[0028] Figure 6 schematically illustrates a timepiece according to the invention, the timepiece including a timing mechanism and means for indicating the operating state of the timing mechanism.

[0029] In all figures, unless otherwise stated, the same elements are referred to by the same reference numerals. Detailed Description

[0030] Figure 1 schematically shows a bottom view of a watch movement 100 of a timepiece 1 according to the invention, the watch movement including a timing mechanism 200. More particularly, Figure 1 shows the timing mechanism 200 when stopped.

[0031] Figure 2 schematically shows a bottom view of a watch movement 100 including a timing mechanism 200 according to the invention when the timing mechanism 200 is in operation.

[0032] In the exemplary embodiments shown in the various figures of this application, the timing mechanism 200 is a cam-operated timing mechanism. However, the invention can also be applied to timing mechanisms with column wheels, and is still within the scope of the invention.

[0033] Conventionally, the watch movement 100 according to the invention includes a running gear train 5 (partially shown) dedicated to time division, and the running gear train is driven by an energy source (not shown).

[0034] The timing mechanism 200 includes a timing wheel train 230 driven on demand via the timekeeping wheel train 5. Conventionally, the timing wheel train 230 includes at least one chronograph minute counter 232 and a chronograph second counter 231. Specification 2 / 6 pages 4 CN 121069728 A

[0035] The timing mechanism 200 includes a coupling rod 250 configured to couple the timing wheel train 230 to and decouple it from the timekeeping wheel train 5 of the watch movement 100 on demand.

[0036] Thus, the coupling rod 250 allows the timing wheel train 230 to be kinematically connected to the timekeeping wheel train 5 on demand via a timing start / stop control device 210, such that the timekeeping wheel train and the adjusting members of the timekeeping wheel train 5 are driven synchronously.

[0037] The timing start / stop control device 210 includes a start / stop pusher 11 kinematically connected to the control member 12. In the exemplary embodiment shown, the pusher 11 is rigidly connected to the control member 12, and the assembly is translated under the action of the pusher 11.

[0038] According to an alternative embodiment, the control member 12 is rod-shaped, and the control member 12 pivots about a pivot axis under the action of the pusher 11.

[0039] The control member 12 can further drive an intermediate control member (not shown), which rotates a control lever 15. The control lever 15 is under the action of a control spring 16, which returns the control lever 15, the control member 12, and the intermediate control member to a rest position when the pusher 11 is no longer actuated by the user.

[0040] The intermediate control member includes an end portion that cooperates with a coordinating member 18, which is directly actuated.A set of control levers provides various functions and states of the timing mechanism 200.

[0041] The coordinating member 18 is movable about a pivot axis P2 and rotates whenever the timing start / stop control device 210 is operated. This coordinating member enables the coordination of various stages of the timing mechanism 200 and the control of various levers or rockers of the timing mechanism 200 to provide these stages: running, stopping, and resetting. As is known, the levers or rockers actuated by the coordinating member 18 are in particular coupling levers, hammers, and stop elements.

[0042] In the exemplary embodiment shown, the coordinating member is a timing cam 18.

[0043] Another known coordinating member for a timing mechanism is a column wheel.

[0044] The timing cam 18 has a lower shuttle 18.1 that cooperates with the end portion of the intermediate control member.

[0045] The end portion of the intermediate control member is configured to rotate the lower shuttle 18.1 clockwise or counterclockwise about its pivot axis P2 by at least one groove whenever the pusher 11 is operated, the clockwise or counterclockwise rotation depending on the position of the lower shuttle 18.1.

[0046] The lower shuttle 18.1 cooperates with a shuttle spring 17, which locks the position of the lower shuttle 18.1 for each change by engaging in one of the grooves 19 of the lower shuttle 18.1 provided for this purpose. In the exemplary embodiment shown, particularly in FIG3, the lower shuttle 18.1 has two grooves 19 configured to cooperate with the shuttle spring 17 to index two stable positions of the timing cam 18.

[0047] The timing cam 18 includes the lower shuttle 18.1 as described above, which is fixed to the upper shuttle 18.2 for rotation therewith, and the upper shuttle 18.2 cooperates in particular with a reset hammer 26 for resetting the timing counters 231, 232.

[0048] The coupling rod 250 cooperates with the lower shuttle 18.1 of the timing cam 18, such that changes in the angular position of the lower shuttle 18.1 modify the position and state of the coupling rod 250, causing the coupling rod to change from a state engaged with the timing wheel train 230 to a state disengaged from the timing wheel train 230, and vice versa.

[0049] The timing mechanism 200 includes a status indicator device 50 having at least two states and being set to move whenever the timing start / stop control device 210 is operated. The status indicator device 50 provides the user with additional information corresponding to the operating state of the timing mechanism 200 (i.e., whether the timing mechanism is running or stopped), for example, through color codes.

[0050] The status indicator device 50 includes two different visual displays that are alternately positioned to face the hole 25 in the shield layer 30 included in the timepiece 1. (Page 3 / 6, CN)121069728 A

[0051] Therefore, through the opening provided for this purpose, the user can easily view the operating status of the timing mechanism 200 on the dial side or the rear side of the timepiece 1.

[0052] The status indicator device 50 is rigidly connected to the coordinating member 18.

[0053] In the exemplary embodiment shown, the status indicator device 50 is rigidly connected to the timing cam 18.

[0054] For example, the status indicator device 50 is rigidly connected to one of the shuttles 18.1, 18.2 of the timing cam 18 by being driven into the shuttle or threaded onto the shuttle.

[0055] Preferably, the status indicator device 50 is rigidly connected to one of the two shuttles 18.1, 18.2 at a distance from the pivot axis P2 of the timing cam 18 by being driven into the shuttle or threaded onto the shuttle.

[0056] For example, the status indicator device 50 is integrally formed as a single piece with the timing cam 18 or with one of the shuttles 18.1, 18.2 of the timing cam 18.

[0057] According to the exemplary embodiment shown, the status indicator device 50 takes the shape of a plate 51, which is rigidly connected to the timing cam 18.

[0058] FIG3 particularly illustrates the timing cam 18 that carries the plate 51. For example, as illustrated, the plate 51 is fixed to the upper shuttle 18.2 for rotation therewith. However, the plate 51 may also be rigidly connected to the lower shuttle 18.1.

[0059] The plate 51 has two portions 51.1, 51.2 extending radially relative to the pivot axis P2 of the timing cam 18, each portion 51.1, 51.2 having a first information item V1 and a second information item V2, which are specific and different from each other, for example, two different colors or two different patterns. Each information item V1, V2 is associated with the operating state of the timing mechanism 200.

[0060] The plate 51 is positioned to face at least one hole 25 (two holes are shown in Figures 4 and 5 by way of example), which is formed by an opening or transparent portion of the shielding layer 30, such that only a limited portion of the plate 51 can be observed. Thus, depending on the angular position of the plate 51, a first portion 51.1 or a second portion 51.2 of the plate 51 is visible through the hole 25.

[0061] The shielding layer 30 is located between the watch movement 100 and the crystal of the watch case 3, or between the watch movement and the transparent back cover 4.

[0062] The shielding layer 30 may be arranged on the dial 6 of the timepiece, on the inner surface of the crystal, or on the inner surface of the transparent back cover 4.

[0063] Alternatively, the shielding layer is formed by the dial of the timepiece, which includes an opening or transparent portion to form a hole.25, thereby allowing alternating viewing of portions 51.1, 51.2 of the plate 51 positioned below the dial through the watch crystal.

[0064] Preferably, the shielding layer 30 is formed of an opaque layer deposited on the inner surface of the transparent back cover.

[0065] For example, the layer forming the shielding layer 30 is, for example, ink deposited by digital printing. For example, the layer may represent a pattern.

[0066] Figures 4 and 5 schematically illustrate the watch mechanism 100 as seen from below through the shielding layer 30, thereby allowing viewing of the plate 51 (shown in dashed lines) of the status indicator device 50 and the operating status of the timing mechanism 200 through the holes 25 in the shielding layer 30. In Figures 4 and 5, the watch case, middle section, and back cover are not shown.

[0067] Therefore, depending on the angular position of the timing cam 18 relative to its pivot axis P2, the user can view the first portion 51.1 (including the first information item V1 and corresponding to the first state of the timing mechanism 200, e.g., stopped) or the second portion 51.2 (corresponding to the second state of the timing mechanism 200, e.g., running) through the hole 25.

[0068] Additional information regarding the operating state of the timing mechanism 200 is provided on pages 4 / 6 of the appendix 6 CN 121069728 A without complicating the watch movement 100.

[0069] Due to the present invention, the timing mechanism is simplified and easier to adjust and implement, especially because it does not include additional movable parts that complicate the timing mechanism and the watch movement. More specifically, using different movable parts to achieve such functions requires a multiplied increase in operating clearance, which leads to inaccuracies at the end of the movement chain and difficulty in correctly adjusting the position of the status indicator.

[0070] Due to the present invention, this additional visual information is provided by a simple attachment plate rigidly connected to the timing cam or the shuttle of the timing cam. In particular, such an architecture allows for improved positioning accuracy of the status indicator by eliminating the operational clearance inherent in the mounting of different movable parts that interact with each other.

[0071] More generally, the status indicator device 50 can be an attachment rigidly connected to the timing cam 18, the coupling rod 250, or another component of the timing mechanism 200, which has two different and alternating stable positions depending on the operating state of the timing mechanism 200.

[0072] The status indicator device 50 can be made as a single piece with the timing cam, the coupling rod 250, or another component of the timing mechanism 200, which has two different and alternating stable positions depending on the operating state of the timing mechanism 200.

[0073] According to an alternative embodiment, the timing mechanism includes a column wheel instead of a timing cam, and the status indicator device 50 may also be carried by the column wheel. In this case, the status indicator device 50 includes a plurality of first portions 51.1 and a plurality of second portions 51.2, the plurality of first and second portions alternating to alternately display the first portion 51.1 and subsequently the second portion 51.2 of the status indicator device 50 whenever the timing start / stop control device 210 is operated.

[0074] The invention also relates to a timepiece 1, such as a wristwatch, which includes such a watch movement 100. Such a timepiece 1 is schematically illustrated with reference to FIG. 6. The timepiece 1 includes a case 3 in which the watch movement 100 according to the invention is housed.

[0075] Preferably, the timepiece 1 includes a crystal 7 and a transparent case back 4 that closes the rear of the case 3. The transparent case back 4 has a mounting ring and a transparent central portion, the transparent central portion being made of, for example, sapphire.

[0076] Preferably, the shielding layer 30 is applied to the inner surface of the transparent central portion of the transparent back cover 4. The shielding layer 30 includes an opening forming a hole 25, which allows viewing of the status indicator device 50 indicating the timing operation status on the rear side of the watch movement 100 through the shielding layer 30.

[0077] According to an alternative embodiment, the shielding layer 30 is an additional layer applied to the dial 6 to view the status indicator device 50 indicating the timing operation status on the dial side of the watch movement 100.

[0078] In an alternative embodiment, the shielding layer 30 is formed by the dial 6, which has an opening to allow viewing of the status indicator device 50 through the dial.

[0079] Operation of the timing mechanism according to the invention

[0080] When the timing mechanism 200 stops, for example after resetting, the timing cam 18 is fixed in a first angular position (referred to as the stop position) by means of the shuttle spring 17, which cooperates with the first groove 19 in the lower shuttle 18.1. In this position of the timing cam 18, the coupling rod 250 is decoupled from the timing wheel train 230. This stop position of the timing mechanism is illustrated more specifically in Figures 1 and 4.

[0081] In this stop position, the first portion 51.1 of the plate 51 faces the hole 25 in the shielding layer 30. In this first position, the user can see through this hole 25 a first information item V1 corresponding to the first portion 51.1, which indicates that the timing mechanism has stopped, as illustrated in Figure 4.

[0082] When the pusher 11 is pressed for the first time, the pusher 11 overcomes the force applied by the control spring 16 to [description page 5 / 6 7 CN 121069728 A]The control element 12, the intermediate control element (if present), and the control lever 15 are moved. According to the example embodiment shown, the lower shuttle 18.1 is then moved clockwise by a groove and held in place by a shuttle spring 17 cooperating with a second groove 19 in the lower shuttle 18.1, and thus the pusher can be released.

[0083] The change in the position of the timing cam 18 modifies the position of the lower shuttle 18.1, which allows the coupling lever 250 to pivot under the action of the lever spring in order to couple the timekeeping gear train 5 to the timing gear train 230.

[0084] The change in the position of the timing cam 18 also modifies the position of the plate 51, which is fixed to the upper shuttle 18.2 for rotation therewith, such that the second portion 52.2 of the second information item V2 of the plate 51, which is then presented, faces the hole 25 in the mask layer 30. In this second position, the user can see a second information item through this hole 25, which indicates that the timing mechanism is operating, as illustrated in FIG5.

[0085] By pressing the pusher 11 again, the pusher 11 again overcomes the force applied by the control spring 16 to move the control member 12, the intermediate control member, and the control lever 15. According to the exemplary embodiment shown, the lower shuttle 18.1 is then moved counterclockwise by a groove and held in place by the shuttle spring 17 cooperating with the first groove 19 in the corresponding lower shuttle 18.1, and thus the pusher can be released.

[0086] The change in the position of the timing cam 18 modifies the position of the lower shuttle 18.1, which causes the coupling rod 250 to decouple from the timing wheel train 230 and reposition the first portion 51.1 of the plate 51 to face the hole 25. Instruction manual 6 / 6 page 8 CN 121069728 A Figure 1 Instruction manual Figure 1 / 5 page 9 CN 121069728 A Figure 2 Instruction manual Figure 2 / 5 page 10 CN 121069728 A Figure 3 Instruction manual Figure 3 / 5 page 11 CN 121069728 A Figure 6 Figure 4 Instruction manual Figure 4 / 5 page 12 CN 121069728 A Figure 5 Instruction manual Figure 5 / 5 page 13 CN 121069728 A HKP2520114 Title: TIMEPIECE COMPRISING A CHRONOGRAPH MECHANISM PROVIDED WITH A DEVICE INDICATING THE OPERATING STATUS OF THE CHRONOGRAPH MECHANISM Abstract: Oneaspect of the invention relates to a timepiece (1) comprising a horological movement (100) housed in a case, said horological movement comprising a going train (5) dedicated to time division and a chronograph mechanism (200) comprising a chronograph train (230) configured to be coupled to the going train on demand via a chronograph start / stop control device (210), the chronograph mechanism including a coordination member rotated about a pivot axis each time the chronograph start / stop control device is operated and directly activating a set of control levers to provide the various operating statuses of the chronograph mechanism, characterised in that the chronograph mechanism comprises a status indicator device fixed to the coordination member for rotation therewith, the status indicator device comprising a first portion presenting a first item of information and a second portion presenting a second item of information, which is different from the first item of information, each portionof the status indicator being positioned alternately facing an aperture in a mask comprised in the timepiece, each time said chronograph start / stop control device is operated. Abstract

Claims

1. A timepiece (1) comprising a watch movement (100) housed in a watch case (3), said watch movement (100) comprising a time-keeping train (5) dedicated to time division and a chronograph mechanism (200), said chronograph mechanism (200) comprising a chronograph train (230) configured to be coupled to said time-keeping train (5) on demand via a chronograph start / stop control device (210), said chronograph mechanism (200) comprising a coordinating member (18) that rotates about a pivot axis (P2) each time said chronograph start / stop control device (210) is operated and directly actuates a set of control levers to provide a plurality of operating states of said chronograph mechanism (200), characterized in that, The timepiece (1) comprises a timepiece movement (100) comprising a timepiece base (2) and a timepiece mechanism (200) comprising a timepiece wheel train (201) and a timepiece counter (202), the timepiece mechanism (200) comprising a timepiece start / stop control device (210) for starting and stopping the timepiece wheel train (201), the timepiece mechanism (200) comprising a coordinating member (18) for rotating the timepiece wheel train (201) and the timepiece counter (202) when the timepiece start / stop control device (210) is operated, the coordinating member (18) being rigidly connected to the timepiece wheel train (201) and to the timepiece counter (202), the timepiece mechanism (200) comprising a state indicator device (50) fixed to the coordinating member (18) for rotating therewith, the state indicator device (50) comprising a first portion (51.1) presenting a first item of information (V1) and a second portion (51.2) presenting a second item of information (V2) different from the first item of information (V1), each portion (51.1, 51.2) of the state indicator device (50) being alternately positioned to face an aperture (25) in a mask layer (30) comprised in the timepiece (1) each time the timepiece start / stop control device (210) is operated.

2. Timepiece (1) according to claim 1, characterized in that, The coordinating member (18) is a timepiece cam (18).

3. Timepiece (1) according to the preceding claim, characterized in that, The timepiece cam (18) comprises at least one shuttle (18.1, 18.2), the state indicator device (50) being rigidly connected to the at least one shuttle (18.1, 18.2).

4. Timepiece (1) according to the preceding claim, characterized in that, The state indicator device (50) is rigidly connected to the at least one shuttle (18.1, 18.2) by being driven into the shuttle or threaded onto the shuttle.

5. Timepiece (1) according to the preceding claim, characterized in that, The state indicator device (50) is rigidly connected to the at least one shuttle (18.1, 18.2) at a distance from the pivot axis (P2) of the timepiece cam (18), by being driven into the shuttle or threaded onto the shuttle.

6. The timepiece (1) according to any one of claims 1 to 3, characterized in that, The state indicator device (50) is integrally formed in one piece with the at least one shuttle (18.1, 18.2).

7. Timepiece (1) according to any one of the preceding claims, characterized in that, The watch case (3) comprises a watch glass (7), and wherein the mask layer (30) is interposed between the timepiece movement (100) and the watch glass (7) so as to view the state indicator device (50) through the aperture (25) on the dial side of the timepiece movement (100).

8. Timepiece (1) according to the preceding claim, characterized in that, The timepiece (1) comprises a dial (6) fastened above the timepiece movement (100), the mask layer (30) being a layer applied to the dial (6) or formed by the dial (6).

9. The timepiece (1) according to any one of claims 1 to 6, characterized in that, The watch case (3) comprises a transparent back cover (4), and wherein the mask layer (30) is interposed between the timepiece movement (100) and the transparent back cover (4) so as to view the state indicator device (50) through the aperture (25) on the back side of the timepiece movement (100).

10. Timepiece (1) according to claim 9, characterized in that, The mask layer (30) is a layer applied to the inner side surface of the transparent back cover (4).

11. Timepiece (1) according to the preceding claim, characterized in that, The mask layer (30) is an ink applied on the inner side surface of the transparent back cover (4) by digital printing.