A display device that enables a clock movement to display the time within a predetermined time period.

Abstract

The present invention relates to a display device (2) for a clock movement, the display device comprising a movable time indicator (52) for displaying the time in a predetermined time zone, and a frame (10) intended to pivot to display information in interaction with a fixed display relative to the casing of the clock movement, the respective angular positions of the frame (10) and the movable time indicator (52) being indexed relative to one another in such a way that the angular position of the frame (10) is related to the display of information relating to the predetermined time zone, the device (2) further comprising a selection mechanism configured to: in response to a predetermined action by a user, rotate the time indicator (52) between a first position associated with a first time zone and a second position associated with a second time zone; and simultaneously rotate the frame (10) in steps such that the frame moves from the first position associated with the first time zone to the second position associated with the second time zone.

Description

Technical Field

[0001] The present invention relates to a display device for a watch movement (mechanism part), and this display device carries a display instrument for the hour part of the hours, minutes and seconds in a predetermined time zone (equitime zone), and is intended to be clearly driven by a driving wheel of the watch movement, and a display wheel for the hour part of the hours, minutes and seconds a chassis that rotates around a first main axis and is intended to display information in cooperation with a display that is stationary with respect to the frame of the watch movement a movable device mounted on the chassis in a manner rotatable around a second rotation axis different from the first main axis a correction mechanism configured to drive the movable device to a predetermined angular position with respect to the frame of the watch movement regardless of the angular position of the chassis around the first main axis and includes.

[0002] The present invention also relates to a watch movement having such a display device and a watch having such a watch movement.

Background Art

[0003] Prior Art Such display devices have already been disclosed in the prior art documents.

[0004] For example, European Patent Application Publication No. 0921451 (Patent Document 1) describes a wristwatch having a chassis that defines an hour hand for displaying the current time, and this chassis rotates around a first main rotation axis and carries both a dial with graduations and a minute hand for the current time, and the dial with graduations and the minute hand for the current time both rotate around the same second rotation axis with respect to the chassis. The dial with graduations is driven so as to have the same orientation with respect to the frame of the watch movement at all angular positions of the chassis. The minute hand for the current time is driven to display the minute part of the current hours, minutes and seconds with respect to the dial with graduations.

[0005] Chinese Patent No. 702422 discloses a similar wristwatch having an annular dial for displaying the hour portion of the current hour, minute, and second. For this purpose, the corresponding display device comprises a chassis driven by a watch movement and pivoting around a first main axis of rotation. This chassis carries an hour portion of the hour, minute, and second dial that pivots around a second axis of rotation, distinct from the first axis of rotation, so as to always have the same orientation with respect to the frame of the watch movement. An hour hand for displaying the current time is also mounted on this chassis in a rotatable manner and is driven to rotate around the second axis of rotation to display the hour portion of the current hour, minute, and second relative to the hour portion of

[0006] Other prior art documents describe display units based on the principle described above. In particular, these various configurations differ only to a greater or lesser degree, but the basic principle of the display unit is essentially the same. This is especially true of the two examples mentioned above, which have nevertheless been disclosed separately for more than 20 years.

[0007] Therefore, there is still a need to propose alternative display devices that enable watch brands to stand out from competitors with solutions that preferably offer enhanced readability compared to known devices. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] European Patent Application Publication No. 0921451 [Patent Document 2] Chinese Patent No. 702422 Specification [Patent Document 3] Chinese Patent Application Publication No. 715546 [Overview of the project] [Problems that the invention aims to solve]

[0009] Disclosure of the invention One of the main objectives of the present invention is to provide a display device having an alternative configuration to known display devices for providing a clock with an original appearance and high readability. [Means for solving the problem]

[0010] For this purpose, the present invention relates more specifically to the above-described type of display device, which is The angular positions of the chassis and the display wheel are indexed relative to each other in a manner intended to relate to the display of information regarding a given time zone, where the angular position of the chassis around the first spindle is relevant. This device further comprises a selection mechanism, which is: In response to a predetermined action by the user, the hour portion display wheel is rotated so that it moves from a first position related to the display of the hour portion in the first time zone to a second position related to the display of the hour portion in the second time zone. Simultaneously, the chassis is rotated in steps so that it moves from a first position related to the display of information related to the first time zone to a second position related to the display of information related to the second time zone. It is structured in this way.

[0011] These features make it easier to read the time in a given time zone compared to the existing devices described above, because they are less dependent on the shape, or more broadly, the appearance, of the chassis. Furthermore, the chassis does not move during the normal operation of the wristwatch and therefore does not interfere with reading the time. In fact, the use of complex displays with several elements that move simultaneously can sometimes make the display more difficult to read, more specifically because these displays often relate to the non-stationary spatial distribution of the indicators showing the current time. Accordingly, the present invention adopts the opposite approach to these complex display devices having chassis driven by a watch movement by proposing a chassis that moves only when requested by the user and displays static information during normal operation.

[0012] The above-mentioned display wheel can preferably be supported by a chassis and configured to rotate around a second rotation axis.

[0013] In this case, it can be further provided that the movable device is a dial with markings for the hours, minutes, and seconds.

[0014] Therefore, it is advantageous for the hour portion of the hour, minute, and second dial to be positioned such that the noon position always coincides with the noon position of a conventional stationary dial, and to have an angular orientation that allows the time in a given time zone to be read normally and intuitively.

[0015] It is advantageous that the above-mentioned display device may also include a display wheel for the minute portion of the current hour, minute, and second, which is intended to carry a display device for the minute portion of the current hour, minute, and second, mounted on the chassis in a manner that allows it to rotate around a second rotation axis. Thus, during the normal operation of the corresponding clock, the current time in a given time zone is displayed in the conventional manner, and the user can adjust the position of the chassis at any time to select the display of the current time in a different time zone.

[0016] The above display device includes a toothed wheel, which is intended to be mounted on the frame of the timepiece movement in a rotatable manner around a first axis of rotation, and this toothed wheel is integrated with the chassis, and the above selection mechanism includes a control device, which is configured to act on the toothed wheel and rotate this gear by only one step in response to a predetermined operation by the user.

[0017] In this case, when the movable device is a dial with graduations for the hours, minutes, and seconds, the device can also include a motion correction linkage arranged between the movable device and a set of teeth, and this set of teeth is intended to be statically mounted on the frame of the timepiece movement, and this motion correction linkage is configured such that for each rotation of the chassis over a predetermined angle, the movable device rotates over an angle equal to twice this predetermined angle, but in a direction opposite to the rotation direction of the chassis.

[0018] Furthermore, when the display wheel for the hours, minutes, and seconds is carried by the chassis and configured to rotate around a second axis of rotation, it is advantageous for the device to also include a motion drive linkage, which is configured to link the display wheel for the hours, minutes, and seconds to the drive wheel of the timepiece movement, and this motion drive linkage includes a planetary gear, and this planetary gear: · A planetary carrier carrying at least one planetary wheel intended to be kinematically linked to the drive wheel of the timepiece movement and engaging with the display wheel for the hours, minutes, and seconds, · And a sun disk kinematically linked to a set of teeth intended to be statically mounted on the frame of the timepiece movement and engaging with the above planetary wheel.

[0019] Generally, it is preferable that the above display device can also include a display wheel for the hours, minutes, and seconds in the local time zone.

[0020] The present invention also relates to a timepiece movement having the above-described features, and to a timepiece provided with such a timepiece movement. This timepiece movement is statically mounted relative to the frame of the timepiece movement and is associated with a support having a display related to the time zone, and this display makes it possible to identify the time zone.

[0021] Other features and advantages of the present invention will be more clearly described in the following detailed description of the preferred embodiments, which refers to the accompanying drawings provided for the purpose of non-limiting examples.

Brief Description of the Drawings

[0022] [Figure 1] It is a simplified front view of a part of a timepiece provided with a display device according to a preferred embodiment of the present invention. [Figure 2] It is a schematic front view of a part of the display device according to the preferred embodiment of FIG. 1. [Figure 3] It is a simplified cross-sectional view of the components shown in FIG. 2 along the cutting line B-B shown in FIG. 2. [Figure 4] It is a simplified front view of another part of the display device according to the preferred embodiment of FIG. 1. [Figure 5] It is a simplified cross-sectional view of the components shown in FIG. 4 along the cutting line A-A shown in FIG. 4.

Modes for Carrying Out the Invention

[0023] Embodiments of the Invention FIG. 1 is a schematic view of a part of a timepiece provided with a display device 2 according to a preferred embodiment of the present invention, clearly showing its general principle. Of course, FIG. 1 and the following detailed description thereof are provided as illustrative examples, and those skilled in the art can make adaptations to meet their own needs without necessarily exceeding the scope of the present invention defined in the claims.

[0024] The display device 2 according to the present invention can be directly incorporated into a clock movement or incorporated into a basic clock movement as an additional module, thereby not exceeding the scope of the present invention. For simplicity, the display device 2 in the form of an additional display module is described below. Details of the structure of the basic clock movement are not described here for brevity and simplicity, as the realization of the present invention does not directly depend on such details.

[0025] The clock 1 typically comprises a case that houses a clock movement (not shown), the clock movement being surrounded by a dial 4, which in this case is generally ring-shaped.

[0026] The dial 4 has an opening 5, which shows a portion of a disc 6 that displays the hour portion of the hours, minutes, and seconds in the local time zone (home time). The disc 6 is marked over 24 hours and is driven by the watch movement to rotate counterclockwise, completing exactly one rotation in 24 hours.

[0027] Furthermore, the dial 4 has an annular portion 8 around its inner circumference, and the annular portion 8 has city names distributed at regular intervals around the entire inner circumference, with each city name associated with a clearly defined time zone. Some city names have the mark "---s", in which case the "s" is positioned to match the name of the adjacent city, indicating the time difference related to daylight saving time.

[0028] The center of the dial 4 is hollow, allowing a mechanism for displaying the time in an additional predetermined time zone to be placed within this hollow. This mechanism comprises a chassis (reference number 10 in Figure 2), which comprises an optional cover plate 12, a time zone index 14, and a secondary dial 16, wherein the cover plate 12 is intended to conceal the clock movement, the time zone index 14 is intended to work with the city name on the annular portion 8, and the secondary dial 16 preferably shows the hour portion of the hour, minute, and second scale. The display device 2 can be supported, for example, by the main plate of a basic clock movement.

[0029] As described below, the display device 2 has a selection mechanism, which is configured to allow the user to rotate the chassis 10 around a first main rotation axis 18, which in this case is at the center of the central opening of the dial 4. It may be advantageous to provide a push button 20 for this purpose on the clock 1. The push button 20 is connected to the selection mechanism such that each time the user presses the push button 20, the chassis 10 rotates by one step in a predetermined direction, clockwise in this example as a non-limiting illustrative example.

[0030] According to the non-limiting embodiment shown, the annular portion 8 of the dial 4 indicates 24 city names, each of which defines an equal number of different positions on the chassis 10, each of which is related to the display of the current time in the corresponding time zone. Thus, according to the embodiment shown, the display device 2 is configured such that the chassis 10 performs exactly one rotation in steps of 1 / 24 of a rotation in response to 24 consecutive presses of the push button 20 by the user.

[0031] Figure 1 shows the angular position of dial 16 after 12 presses from the position indicated by the solid line, with a dashed line. As shown in the figure, index 14 functions as a standard indicator needle for city names, facilitating the reading of the city name that dial 16 is facing.

[0032] The dial 16 is mounted on the chassis 10 in a manner that allows it to rotate around a second pivot axis 22 and is connected to a correction mechanism configured to keep the angular direction of the dial 16 constant relative to the frame of the watch movement.

[0033] The chassis 10 also has a current time indicator for a given time zone, in this case an hour hand 24 and a minute hand 26, both of which are configured to rotate around a second rotation axis 22. Thus, the two hands 24 and 26 are driven not only to display the current time for a given time zone, but also to correct the position of these hands when the user rotates the chassis 10, and therefore the dial 16, as will be explained below.

[0034] The watch 1 also includes a crown 28, which may be advantageous to have an axis position such that its rotation corrects the time in the local time zone and the time in the additional time zone in a synchronous manner. It may also be advantageous to have an additional axis position of the crown 28 such that its rotation allows the time in the local time zone or the time in the additional time zone to be corrected independently of the time in the other time zone.

[0035] Preferred configurations of the display device 2 will be described below with reference to Figures 2 to 5. Figures 2 and 3 are simplified diagrams, and in particular, they are front and cross-sectional views, respectively, of a portion of the display device 2 that maintains the angular direction of the dial 16 when the chassis 10 moves, while Figures 4 and 5 are also simplified diagrams, and are front and cross-sectional views, respectively, of a portion of the display device 2 that ensures proper driving of the hour hand 24 and minute hand 26 on the dial 16.

[0036] The chassis 10 is integrated with the toothed wheel 32 by three screws 30 in this case, and the toothed wheel 32 is mounted on a component of the watch movement frame (not shown, e.g., a flat plate) in a manner that allows it to rotate around the first rotation axis 18. The chassis 10 and the toothed wheel 32 have openings aligned with the first rotation axis 18, and these openings define a passage 34, the function of which will be described below.

[0037] In this case, the toothed wheel 32 has 24 teeth that cooperate with the jumper 36 to define 24 different angular positions of the chassis 10 relative to the clock movement.

[0038] As can be seen from Figure 2, the push button 20 is intended to work in cooperation with a selection mechanism that allows for the selection of the angular position that the chassis 10 points relative to the clock movement. More specifically, the push button 20 is configured to act on a control device that rotates relative to the frame of the clock movement, in this case a selection lever 38.

[0039] The selection lever 38 is positioned and sized to cooperate with the teeth of the toothed wheel 32 in response to the user pressing the push button 20, so that the pressure on the push button 20 rotates the toothed wheel 32 by one step, allowing the user to move from one time zone to the next. For this purpose, the selection lever 38 includes an actuation beak 40 provided at the free end of an elastic arm, which, under the operation of an integrated elastic return member 42, allows the actuation beak 40 to retract when the selection lever 38 returns to the idle position (shown in Figure 2). Of course, the present invention is not limited to the embodiment of the selection lever 38 specifically illustrated and described, and those skilled in the art will have no particular difficulty in adapting the teachings herein to their own requirements, thereby not exceeding the scope of the present invention as defined by the claims.

[0040] The chassis 10 also supports a toothed ring 44, which supports a dial 16 and is intended to drive this dial to rotate relative to the chassis 10. For this purpose, the toothed ring 44 is mounted on the chassis 10 so that it can rotate freely relative to the chassis 10.

[0041] The toothed ring 44 is linked to a stationary toothed ring 46 via a motion compensation linkage, which keeps the angular direction of the dial 16 constant relative to the frame of the watch movement. In this case, the motion compensation linkage comprises a first intermediate wheel 48, the pinion (small gear) of the first intermediate wheel 48 engages with the toothed ring 44, the large gear of the first intermediate wheel 48 engages with the large gear of the second intermediate wheel 50, and the large gear of the second intermediate wheel 50 itself engages with the teeth of the stationary toothed wheel 46.

[0042] The motion correction linkage is advantageous if it has a gear ratio such that for every 1 / 24 of a revolution the chassis 10 rotates around the first rotation axis 18, the dial 16 rotates around the second rotation axis 22 by 1 / 12 of a revolution (the chassis 10 and the dial 16 rotate in opposite directions).

[0043] Therefore, in normal operation, that is, when the clock 1 displays the time as usual without user intervention, the chassis 10 and dial 16 have their respective stationary positions / directions. When the user wishes to change an additional time zone, the time of this time zone is indicated to the dial 16 by the hour hand 24, and the user presses the push button 20 the required number of times to rotate the chassis 10 until the index 14 faces the desired city name, while the angular direction of the dial 16 is kept constant by the motion correction linkage.

[0044] The driving of the indicator hands 24 and 26 facing the dial 16 will be described in detail with reference to Figures 4 and 5. The hands 24 and 26 must be driven to indicate the current time in a predetermined time zone, and must be driven to indicate the current time while maintaining the same angular reference frame, i.e., while the dial 16 has a constant angular direction, as the chassis 10 rotates.

[0045] The display device 2 is equipped with a motion drive linkage, which is configured to connect a display wheel 52 for the hour portion of the hours, minutes, and seconds, intended to carry the hour hand 24 of a predetermined time zone, to a drive wheel (not shown) of a clock movement. This motion drive linkage includes an additional cannon pinion 54, which is driven by the drive wheel of the clock movement and intended to rotate exactly once per hour around the first rotation axis 18. The movement of the drive wheel of the clock movement is transmitted to the additional cannon pinion 54 through a passage 34. Thus, the rotational motion of the additional cannon pinion 54 is independent of any rotational motion of the chassis 10.

[0046] An additional cannon pinion 54 engages with the first wheel of an intermediate drive wheel 56, which has a second wheel that engages with a time zone cannon pinion 58, which is positioned on the chassis 10 and is intended to pivot around a second pivot axis 22 and carry the minute hand 26.

[0047] The time zone cannon pinion 58 carries two planetary wheels 60 that engage with the teeth of the hour portion indicator wheel 52. At the same time, each planetary wheel 60 also engages with a SanDisk 62 coaxial with the hour portion indicator wheel 52.

[0048] The SanDisk 62 is part of the SunWheel 64, which also carries a compensating SanDisk 66 that engages with the pinion of the second intermediate wheel 50, and the second intermediate wheel 50 engages with a stationary toothed ring 46. Thus, the discs 62 and 66 are bound together to rotate.

[0049] In normal operation, that is, when the clock 1 is running without any intervention from the user, particularly to rotate the chassis 10, the SanDisk 62 remains stationary as long as it is kinematically connected to the fixed toothed ring 46. The teeth of the hour display wheel 52 and the SanDisk 62 have nearly identical pitch circle diameters but slightly different numbers of teeth. Therefore, when the planetary wheel 60 rolls over the stationary teeth of the SanDisk 62, these wheels induce a slight clockwise rotation of the hour display wheel 52, causing it to complete exactly one rotation in 24 hours. The operating principle of this particular motion-operation will not be described in detail herein, as it has already been disclosed in a prior patent application published as Chinese Patent Application Publication No. 715546 (Patent Document 3), and that teaching is included herein by reference insofar as the realization of the link between the time zone cannon pinion 58 and the hour portion display wheel 52 of the hours, minutes, and seconds is of interest.

[0050] From the above, it is also clear that the wheel configured to rotate around the second rotation axis 22 forms a planetary gear that operates when the user acts on the push button 20 to rotate the chassis 10. During this operation, the time zone cannon pinion 58 continues to function as the first input to the planetary gear via a link with the drive wheel of the watch movement, but also functions as the planetary carrier of the planetary wheel 60. The SanDisk 62 engages with the planetary wheel 60 and functions as the second input, since this SanDisk is driven by the second intermediate wheel 50, which is forced to roll on the teeth of the stationary ring 46 as the chassis 10 rotates around the first rotation axis 18. The hour portion display wheel 52 of the hours, minutes, and seconds functions as the output by driving the hour hand 24 of a predetermined time zone in accordance with the movement of the time zone cannon pinion 58 and the chassis 10. Therefore, while the chassis 10 is rotating, the planetary wheel 60 is driven by the SanDisk 62 and, in response to the user's action on the push button 20, rotates faster than during normal operation for a time equivalent to the movement time of the chassis 10, driving the hour hand 24 to switch from displaying the time in the first time zone to displaying the time in the second time zone.

[0051] The gear ratio related to the planetary gear described above, and the gear ratio between the planetary gear and the stationary toothed ring 46, are adjusted so that when the chassis 10 rotates by 1 / 24 of a revolution, the hour hand 24 rotates by 1 / 12 of a revolution (in this case, in the same direction of rotation).

[0052] Furthermore, the drive wheel of the watch movement can be, for example, a conventional cannon pinion (which may be modified to not have a standard cannon intended to support the minute hand), and this cannon pinion is also connected to the local time indicator. Thus, the crown 28 for setting the time can be configured to correct the time by acting on the cannon pinion of the watch movement in a conventional manner, in which case the corresponding movement of this cannon pinion is transmitted simultaneously to both the local time indicator 6 and the indicator 24 in a given time zone.

[0053] From the above description, it is clear that the present invention has a limited number of components, thereby providing an original, and particularly easy-to-read, display device 2, while minimizing the number of modifications required to the basic clock movement.

[0054] The above description is intended to illustrate specific embodiments as non-limiting examples for illustrative purposes, and the present invention is not limited to realizing the specific features described above, such as the nature of the information displayed by the various display devices described, or the shapes and methods for producing specific components, since these components can be modified without affecting the realization of the present invention, for example, the shape of the chassis 10, or the shape of the components of the selection mechanism described above. In particular, the chassis 10 can carry a single display device controlled relative to the frame of a clock movement in a position where the displayed information can be intuitively read, without necessarily requiring a graduated dial with angular directions that must be kept stationary. In this case, the displayed information may differ from the time in a given time zone, and the hour portion display wheel 52 of the hour-minute-second hand can be configured to pivot around the first pivot axis 18, thereby not exceeding the scope of the present invention. Similarly, the minute portion display hand 26 of the hour-minute-second hand can also be configured to pivot around the first pivot axis 18 regardless of the position of the hour portion display hand 24, thereby not exceeding the scope of the present invention. Furthermore, the chassis 10 may have different shapes, and possibly larger shapes, allowing it to carry one or more additional display wheels associated with additional annular dials (which may move at the user's request). Furthermore, when displaying the time in an additional time zone, the toothed wheel 32 may be provided with a variable pitch to display the time in half-hour (unit) time zones, without exceeding the scope of the present invention as defined by the claims.

Claims

1. A display device (2) for a clock movement, A display device (24) for the hour portion of hours, minutes, and seconds in a predetermined time zone is supported by a display wheel (52) for the hour portion of hours, minutes, and seconds, which is intended to be driven by the drive wheel of the clock movement, A chassis (10) that rotates around a first main shaft (18) and is intended to display information in cooperation with a stationary display relative to the frame of the clock movement, A movable device mounted on the chassis (10) in a manner that allows it to rotate around a second rotation axis (22) different from the first main shaft (18), A display device comprising a correction mechanism configured to drive the movable device to a predetermined angular position relative to the frame of the clock movement, regardless of the angular position of the chassis (10) around the first spindle (18), The hour portion of the hour, minute, and second wheel (52) is supported by the chassis (10) and configured to rotate around the second rotation axis (22), The angular position of the display wheel (52) for the hours portion of the hours, minutes, and seconds is modified in accordance with the angular position of the chassis (10) around the first spindle (18), in a manner intended to relate to the display of static information relating to a predetermined time zone. The display device (2) further comprises a display wheel (58) for the minutes portion of the current hours, minutes, and seconds, and the display wheel for the minutes portion of the hours, minutes, and seconds carries a display device (26) for the minutes portion of the current hours, minutes, and seconds, which is mounted on the chassis (10) in a manner that allows it to rotate around the second rotation axis (22). The display device (2) further comprises a selection mechanism, and the selection mechanism is In response to a predetermined action by the user, the hour portion display wheel (52) is rotated so that it moves from a first position related to the display of the hour portion of the hour in the first time zone to a second position related to the display of the hour portion of the hour in the second time zone. Simultaneously, the chassis (10) is rotated so that it moves from a first position related to the display of information about the first time zone to a second position related to the display of information about the second time zone. A display device characterized by being configured in such a way.

2. The display device (2) according to claim 1, characterized in that the movable device is a dial (16) with markings for the hour portion of hours, minutes, and seconds.

3. A toothed wheel (32) is provided, which is intended to be mounted on the frame of the watch movement in a manner that allows it to rotate around the first spindle (18), and the toothed wheel (32) is integrated with the chassis (10), The display device (2) according to claim 1, characterized in that the selection mechanism comprises a control device (38), the control device acting on the toothed wheel (32) to rotate the toothed wheel (32) by one step in response to a predetermined action by the user.

4. A toothed wheel (32) is provided, which is intended to be mounted on the frame of the watch movement in a manner that allows it to rotate around the first spindle (18), and the toothed wheel (32) is integrated with the chassis (10), The display device (2) according to claim 2, characterized in that the selection mechanism comprises a control device (38), the control device acting on the toothed wheel (32) to rotate the toothed wheel (32) by one step in response to the predetermined action by the user.

5. The movable device is a dial (16) with markings for the hours, minutes, and seconds. The display device (2) according to claim 3, wherein the display device (2) comprises a motion compensation linkage disposed between the dial (16) and a pair of teeth, the pair of teeth being intended to be statically mounted to the frame of the watch movement, the motion compensation linkage is configured such that for each rotation of the chassis (10) over a predetermined angle, the dial (16) rotates over an angle equal to twice the predetermined angle, and the motion compensation linkage rotates in the opposite direction to the rotation of the chassis (10).

6. The display device (2) according to claim 4, wherein the display device (2) comprises a motion compensation linkage disposed between the dial (16) and a pair of teeth, the pair of teeth being intended to be statically mounted to the frame of the watch movement, the motion compensation linkage being configured such that for each rotation of the chassis (10) over a predetermined angle, the dial (16) rotates over an angle equal to twice the predetermined angle, and the motion compensation linkage rotates in the opposite direction to the rotation of the chassis (10).

7. The movable device is a dial (16) with markings for the hours, minutes, and seconds. The display device (2) according to claim 5, wherein the display device (2) comprises a motion compensation linkage disposed between the dial (16) and a pair of teeth, the pair of teeth being intended to be statically mounted to the frame of the watch movement, the motion compensation linkage is configured such that for each rotation of the chassis (10) over a predetermined angle, the dial (16) rotates over an angle equal to twice the predetermined angle, and the motion compensation linkage rotates in the opposite direction to the rotation of the chassis (10).

8. The clock movement comprises a motion drive linkage configured to connect the hour portion display wheel (52) of the hour, minute, and second to the drive wheel of the clock movement, the motion drive linkage comprises a planetary gear, and the planetary gear is A planetary carrier (58) is intended to be kinematically linked to the drive wheel of the clock movement and carries at least one planetary wheel (60) that engages with the hour portion display wheel (52) of the hours, minutes, and seconds, A SanDisk kinematically linked to a set of teeth, which engages with at least one planetary wheel (60) and is intended to be statically mounted to the frame of the watch movement, and The display device (2) according to claim 1, comprising the following:

9. The clock movement comprises a motion drive linkage configured to connect the hour portion display wheel (52) of the hour, minute, and second to the drive wheel of the clock movement, the motion drive linkage comprises a planetary gear, and the planetary gear is A planetary carrier (58) is intended to be kinematically linked to the drive wheel of the clock movement and carries at least one planetary wheel (60) that engages with the hour portion display wheel (52) of the hours, minutes, and seconds, A SanDisk kinematically linked to a set of teeth, which engages with at least one planetary wheel (60) and is intended to be statically mounted to the frame of the watch movement, and The display device (2) according to claim 2, comprising:

10. The clock movement comprises a motion drive linkage configured to connect the hour portion display wheel (52) of the hour, minute, and second to the drive wheel of the clock movement, the motion drive linkage comprises a planetary gear, and the planetary gear is A planetary carrier (58) is intended to be kinematically linked to the drive wheel of the clock movement and carries at least one planetary wheel (60) that engages with the hour portion display wheel (52) of the hours, minutes, and seconds, A SanDisk kinematically linked to a set of teeth, which engages with at least one planetary wheel (60) and is intended to be statically mounted to the frame of the watch movement, and The display device (2) according to claim 4, comprising the following:

11. The clock movement comprises a motion drive linkage configured to connect the hour portion display wheel (52) of the hour, minute, and second to the drive wheel of the clock movement, the motion drive linkage comprises a planetary gear, and the planetary gear is A planetary carrier (58) is intended to be kinematically linked to the drive wheel of the clock movement and carries at least one planetary wheel (60) that engages with the hour portion display wheel (52) of the hours, minutes, and seconds, A SanDisk kinematically linked to a set of teeth, which engages with at least one planetary wheel (60) and is intended to be statically mounted to the frame of the watch movement, and The display device (2) according to claim 6, comprising the following:

12. The display device (2) according to claim 1, characterized in that it also includes a display wheel for the hour portion of the hours, minutes, and seconds in the local time zone.

13. The display device (2) according to claim 2, characterized in that it also includes a display wheel for the hour portion of the hours, minutes, and seconds in the local time zone.

14. The display device (2) according to claim 3, characterized in that it also includes a display wheel for the hour portion of the hours, minutes, and seconds in the local time zone.

15. A clock movement comprising a display device according to any one of claims 1 to 14.

16. A clock movement comprising a display device (2) according to any one of claims 1 to 14, and a clock comprising a support (4) statically mounted on the frame of the clock movement and having a time zone indicator, the indicator enabling identification of the time zone.

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