Watch with control for display bezel and for another functional device

Abstract

One aspect of the invention relates to a watch (100) comprising a middleware (50) carrying a display bezel (10) and a control bezel (20) accessible by a user for operation and rotatable in a first direction of rotation and a second direction of rotation opposite the first direction of rotation, the display bezel (10) can be driven only in a first rotational direction by means of a one-way drive mechanism of the display bezel under the action of a rotational movement exerted by a user on the control bezel (20) in the first rotational direction, the watch comprising, in addition to the display bezel, a further movable member, and the control bezel (20) is further arranged to be able to drive the movable member (30) under the action of a rotational movement exerted by the user on the control bezel (20) in the second rotational direction. The movable member is advantageously located inside the watch.

Description

Technical Field

[0001] The present invention relates to a watch comprising a middle piece carrying a bidirectional control bezel and a display bezel, wherein the display bezel is arranged to be rotatably driven by the control bezel relative to the middle piece only in a first rotational direction under the action of a rotational movement applied to the control bezel by a user in the first rotational direction.

[0002] The invention relates in particular to diving watches. Background Art

[0003] Many commercially available mechanical or smart watches are equipped with functions that can be activated or operated by turning a bezel, in particular a control bezel.

[0004] For some watches, such as diving watches, the combination of the position of the display bezel and the rest of the display informs the user of the time remaining before a safe operation is performed, with the result that the display bezel can only be rotated in one direction to display conservative or precise information. In order to ensure safety, irreversible fastening is not always possible and it is necessary to reconcile a high level of resistance to external stresses with a reversible fastening, which may be necessary in order to retain an object or to change its appearance. Summary of the invention

[0005] The object of the present invention is to allow a user of a watch (particularly a user of a diving watch) to operate the display bezel in a single rotational direction without affecting the water resistance of the watch and to activate or adjust functional devices within the watch by rotating a control bezel, which control bezel is particularly but not exclusively equipped with a magnetic transmission mechanism.

[0006] To this end, the invention relates to a watch comprising a middle piece carrying a display bezel and a control bezel coaxial with the display bezel and accessible to a user for operation, the control bezel being rotatable in a first rotational direction and in a second rotational direction opposite to the first rotational direction and being arranged to be able to drive the display bezel only in the first rotational direction via a unidirectional drive mechanism of the display bezel under the effect of a rotational movement applied to the control bezel by the user in the first rotational direction. According to the invention, the watch comprises, in addition to the display bezel, another movable member, and the control bezel is arranged to be able to drive the movable member under the effect of a rotational movement applied to the control bezel by the user in the second rotational direction.

[0007] According to an advantageous feature, the display bezel is arranged to be rotatable relative to said middle piece only in said first rotational direction by means of a first click mechanism arranged between said middle piece and the display bezel.

[0008] According to another advantageous feature, said unidirectional drive mechanism for the display bezel is formed by a second click mechanism.

[0009] According to a main embodiment, the movable member is housed inside the intermediate piece and sealingly protected by the intermediate piece.

[0010] According to a preferred embodiment, the control bezel is arranged to drive the movable member by means of a non-contact transmission mechanism formed by a magnetic transmission mechanism, the control bezel or the movable member comprising a magnet arranged to cooperate with a magnet or at least one ferromagnetic block respectively included in the movable member or the control bezel so as to allow the movable member to be driven in a non-contact manner by the control bezel by means of the intermediate piece.

[0011] According to a preferred embodiment, the watch is arranged such that the control bezel is capable of driving the movable member solely by said rotational movement in the second rotational direction.

[0012] In an embodiment combining the above-mentioned advantageous embodiments and preferred embodiments, the watch includes a third pawl mechanism, which is arranged between the movable member and the part or the middle piece that is integral with the middle piece, so as to prevent the movable member from being driven during the rotational movement of the control bezel along the first rotational direction.

[0013] In a particular embodiment, the control bezel is arranged to drive the movable member by means of a unidirectional mechanical transmission mechanism, which includes a pawl mechanism or an upstream detachable mechanism arranged upstream of the movable member so as to allow the movable member to be driven only by the rotational movement of the control bezel along the second rotational direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The objects, advantages and features of the present invention will be better understood by reading the following detailed description given with reference to the accompanying drawings, in which:

[0015] Figure 1 Schematically shows a perspective section through a radial plane passing through the axis of rotation of the bezel of a watch according to the invention, the middle piece of which carries two outer bezels, namely display bezels which can only be indirectly controlled by a control bezel operated by the user, and inside which a movable member, in this case in the form of an inner ring and not directly accessible from the outside of the watch, can be indirectly controlled by the control bezel by means of a transmission mechanism, which in this alternative embodiment is a magnetic transmission mechanism; in this figure, the two rings of magnets are coaxial, one integral with the control bezel and the other integral with the movable member;

[0016] Figure 2 Schematically shows Figure 1 An exploded perspective view of the stack of components visible in FIG. 1 , without the back cover of the watch;

[0017] Figure 3schematically shows a perspective view from the inside of the watch without the middle piece, the display bezel and the control bezel;

[0018] Figure 4 yes Figure 3 an enlarged view of the components shown, illustrating the alternating polarity of the magnets included in the outer magnet ring integral with the control bezel;

[0019] Figure 5 schematically shows a cross-section of the display bezel, the view being taken along a plane passing through the axis of rotation of the control bezel;

[0020] Figure 6 schematically shows a middle piece sealingly surrounding a movable member and a cross-sectional view of a control bezel, wherein the control bezel and the ring of magnets of the movable member are in a coplanar configuration, the view being taken along a plane passing through the axis of rotation of the control bezel;

[0021] Figure 7 and Figure 1 The same alternative embodiment is similarly shown, wherein in the case of a rotation of the control bezel in a first counterclockwise direction, the coaxial rings of magnets of the control bezel and the movable member are in a radial configuration;

[0022] Figure 8 Shown in Figure 7 a plan view of the watch as seen by a user, and a perspective section view of the watch through a radial plane passing through the axis of rotation of the bezel, in the alternative embodiment shown; said notch of said control bezel being blocked by the detent of a front pawl carried by said display bezel, while said first front notch of said display bezel is not blocked by a front intermediate pawl carried by the middle piece;

[0023] Fig. 9 and Figure 8 The same mechanism is similarly shown, with the control bezel rotating in a second direction opposite to the first: it can be seen that the notch of the control bezel is not obstructed by the detent of the front pawl of the display bezel, while the first front notch of the display bezel is obstructed by the detent of the front intermediate pawl carried by the middle;

[0024] Fig.10A perspective view of an alternative embodiment is shown in which a movable member, shown with its lower ring of magnets and an internally toothed transmission wheel (internal toothed transmission wheel), cooperates with a decoupling mechanism to lock or drive a wheel offset from the common axis of the bezel: this offset wheel is guided between a plate and a bridge; a pinion comprises a trunnion movable in an oblong aperture in this bridge, which cooperates with the toothed transmission wheel and tends to return towards the offset wheel by means of a strip spring embedded in the plate; this pinion is shown here in its position of engagement with the offset wheel, which itself controls another function inside the watch;

[0025] Fig.11 An enlarged view of the engagement between the pinion and the offset wheel is shown from above; when the movable member rotates in the second direction, the pinion rotates in the second direction and the offset wheel rotates in the first direction;

[0026] Fig.12 Shown with Fig.11 a situation opposite to the situation of the embodiment of the present invention, showing an enlarged view of the disengagement between the pinion and the offset wheel; when the movable member rotates in a first direction, the pinion rotates in the first direction and moves away from the offset wheel, and the non-driven offset wheel remains stationary;

[0027] Fig.13 and Fig.10 Similarly, another alternative embodiment with a mechanical transmission is shown, in which the control bezel directly carries the internally toothed transmission wheel and is connected to the Fig.10 similarly cooperating with a decoupling mechanism for locking or driving a wheel offset from the common axis of the bezel, the offset wheel thus constituting the movable member or a direct drive member of the movable member;

[0028] Fig.14 Shows Fig.10 Institutions or Fig.13 Detailed enlarged cross-sectional views of the mechanism in FIG. 1 taken along two planes passing through the axis of rotation of the pinion in the left-hand portion of the figure on the one hand and through the axis of rotation of the offset wheel in the right-hand portion of the figure on the other hand;

[0029] Fig.15 Shows Fig.13 and 14 A cross-sectional view of the offset wheel in FIG. 1 taken along its rotation axis, which offset wheel can also be applied to Figures 10 to 12 In an alternative embodiment, the offset wheel comprises an upper wheel located above the plate and capable of being driven by a pinion, the upper wheel being coupled by an arbour sealed by at least one seal to a lower wheel housed in a sealed chamber of the watch. DETAILED DESCRIPTION

[0030] The present invention relates to a timepiece, more particularly to a watch 100 , even more particularly to a diving watch comprising a middle piece 50 carrying a display bezel 10 rotatable relative to the middle piece 50 at least in a single counterclockwise rotation direction S1 .

[0031] The watch 100 includes a control bezel 20 that is coaxial with the display bezel 10 and accessible to a user for operation. The control bezel 20 is movable in a first rotational direction S1 and a second rotational direction S2 opposite to the first rotational direction S1, and is arranged to drive the display bezel 10 only in the first rotational direction by a unidirectional drive mechanism of the display bezel 10 under the action of a rotational movement applied to the control bezel 20 by the user in the first rotational direction S1. In addition to the display bezel 10, the watch 100 includes another movable member 30, and the control bezel 20 is arranged to be able to drive the movable member 30 under the action of a rotational movement applied to the control bezel 20 by the user in the second rotational direction S2.

[0032] Advantageously, display bezel 10 is arranged rotatable only in a first rotational direction S1 relative to middle piece 50 by means of a first detent mechanism arranged between middle piece 50 and display bezel The display bezel is held axially in position by means of a circular spring 509 .

[0033] According to another advantageous feature, the unidirectional drive mechanism for display bezel 10 is formed by a second click mechanism arranged between the control bezel and the display bezel.

[0034] Preferably, the movable member 30 is accommodated in the intermediate member 50 and is sealingly protected by the intermediate member 50 .

[0035] More specifically, watch 100 comprises a movable member 30, inside middle piece 50 and thus sealedly protected by middle piece 50, coaxial with control bezel 20 and display bezel 10, and movable by a unidirectional rotational movement in a second rotational direction. Furthermore, control bezel 20 is arranged to drive movable member 30 in the second rotational direction. More specifically, in Figure 1 In the alternative embodiment shown, movable element 30 is an inner ring coaxial with control bezel 20 and display bezel 10 .

[0036] More specifically, and as Figure 1 and Figures 7 to 9 As can be seen in FIG. 2 , control bezel 20 is externally coaxial with display bezel 10 and is arranged to protect display bezel 10 laterally.

[0037] Control bezel 20 is arranged to drive movable member 30 via a transmission mechanism, which may be a mechanical transmission mechanism or a contactless transmission mechanism.

[0038] Even more specifically, and especially as Figure 1 and Figures 6 to 9 As can be seen in FIG. 1 , the control bezel 20 is arranged to drive the movable member 30 by means of a non-contact transmission mechanism formed by a magnetic transmission mechanism, the control bezel 20 or the movable member 30 comprising a magnet arranged to cooperate with a magnet or at least one ferromagnetic block included in the movable member 30 or the control bezel 20, respectively (the control bezel 20 comprises a magnet arranged to cooperate with a magnet or at least one ferromagnetic block included in the movable member 30, or the movable member 30 comprises a magnet arranged to cooperate with a magnet or at least one ferromagnetic block included in the control bezel 20), so as to allow the movable member 30 to be driven in a non-contact manner by the control bezel 20 by means of the middle piece 50. These magnetic transmission mechanisms contribute to ensuring that the watch is waterproof.

[0039] More specifically, movable member 30 comprises an internal magnet 38 separated by an intermediate piece 50 from at least one external ferromagnetic mass or external magnet 28 included in control bezel 20 .

[0040] More specifically, the control bezel 20 is arranged to drive the movable member 30 in at least the second rotational direction under the effect of magnetic cooperation between the movable member 30 and the control bezel 20 (more specifically, between the inner magnet 38 and the outer magnet 28 when both the movable member 30 and the control bezel 20 include magnets), such as Figures 1 to 4 and Figures 7 to 12 Watch 100 thus comprises a control bezel 20 with magnetic transmission for the internal movable member and a double pawl system for the unidirectional movement of the display bezel and its drive in a first direction of rotation.

[0041] Therefore, in this embodiment, the invention is based on the concept of a watch control bezel 20, which allows movement to be transmitted inside the watch 100 by magnetism, in particular in two rotational directions or only in one direction, and when the user operates the control bezel 20 in the clockwise direction (second rotational direction), it does not interfere with the display of the display bezel 10.

[0042] In the particular embodiment shown in the drawings, when a user wishes to adjust the display bezel 10 carrying or including the first detent 15, as Figure 1 As shown, the user operates control bezel 20 in a first counterclockwise direction S1 , outer bezel 20 carrying or comprising a second notch 21 , which makes it possible to transmit the rotation of control bezel 20 to display bezel 10 .

[0043] In this description, "comprising" must be understood to mean a one-piece component, such as a bezel, into which specific profiles such as teeth are machined, and "carrying" must be understood to mean a component carrying another component, such as a bezel carrying an attached toothed ring.

[0044] Middle piece 50 carries or includes an intermediate pawl 55 arranged to cooperate with a first notch 11 carried or included in display bezel 10. This intermediate pawl 55, which is opposite to first pawl 15, slides relative to middle piece 50 and allows display bezel 10 to rotate in a first rotational direction. Since control bezel 20 is integral with the magnet, it allows magnetic transmission with movable member 30 to activate the functions inside the watch without affecting the water resistance of watch 100.

[0045] When the user wishes to activate this function, particularly underwater, without adjusting the display bezel 10, the user rotates said control bezel 20 clockwise, wherein the first pawl 15 slides, thereby allowing the control bezel 20 to continue rotating, and the intermediate pawl 55 (mounted in the opposite direction to the first pawl 15) blocks the rotation of the display bezel 10 relative to the intermediate 50, thereby preventing the display from being interrupted, while allowing the control bezel 20 to rotate clockwise (second rotation direction). This operation can be used, for example, to trigger the light function, start a repeater or any other function included in the watch.

[0046] Various arrangements can be used for the magnetic blocks.

[0047] exist Figure 6 and Figure 7 In a first arrangement visible in the drawing, movable member 30 is arranged so that it can rotate; internal magnets 38 on the one hand and external magnets 28 or at least one external ferromagnetic block on the other hand are arranged in two rings that are substantially coplanar and concentric with respect to a common axis of rotation D about which control bezel 20 and movable member 30 can rotate.

[0048] Thus, internal magnet 38 on the one hand and external magnet 28 or at least one external ferromagnetic mass on the other hand are arranged in two substantially coplanar rings, coaxial with respect to the common axis of rotation D of control bezel 20 and display bezel 10 ; Figure 6 and Figure 7 In the specific and non-limiting case of , axis D is also the axis of rotation of movable member 30. This radial configuration, with magnetic field lines perpendicular to axis of rotation D of the bezel, is advantageous because friction forces are compensated by magnets located on the other side of the periphery of the inner and outer bezels. Figure 2 A subassembly 300 is shown, formed by a movable member 30 with a lower magnet 38 , a magnetic field closing plate 40 and a notched ring 32 cooperating with an internal detent 31 .

[0049] exist Figure 1 , Figure 8 and Fig. 9 In the second arrangement, visible in FIG, movable member 30 is arranged so that it can rotate; and internal magnets 38 on the one hand and external magnets 28 or at least one external ferromagnetic block on the other hand are arranged in two rings which are parallel and stacked in the direction of a common axis of rotation D about which control bezel 20 and movable member 30 can rotate. Figure 1 , Figure 8 and Fig. 9 In the specific and non-limiting case of FIG. 3 , the axis D is also the axis of rotation of the movable member 30 .

[0050] External magnets 28 of control bezel 20 may be above internal magnets 38 of movable member 30, in which case the magnetic field lines are parallel to the bezel's axis of rotation D. However, the friction between movable member 30 and middle piece 50 and between control bezel 20 and middle piece increases with the number of magnets, and the frictional force may be of the same order of magnitude as the magnetic force.

[0051] In particular, and as Figure 4 As can be seen in FIG. 1 , on the same magnet ring (in this case the ring carrying the outer magnets 28 ), these magnets have alternating polarities 28A and 28B; it goes without saying that the inner magnets 38 therefore have a similar arrangement. This creates a magnetic notch.

[0052] For example, for a diving watch, on a diameter of approximately 38 mm, 28 magnets are used per bezel (cylinders of 1.3 mm diameter and 0.85 mm height), with an air gap of 0.45 mm, and magnetic field closing plates 40 and 41 made of AFK metal sheet with a thickness of 0.2 mm, which allows a torque of 32 mNm to be transmitted between control bezel 20 and movable member 30, which is sufficient to trigger the watch functions in complete safety.

[0053] In the particular case where control bezel 20 or movable member 30 comprises at least one ferromagnetic block, an advantageous arrangement not shown involves the movable member comprising at least one ferromagnetic block in the form of a toothed ring, the number of teeth of which is equal to the number of magnetic pitches comprised by movable member 30 or control bezel 20, respectively, or is an integer multiple of this number of magnetic pitches.

[0054] More specifically, control bezel 20 comprises at least one ferromagnetic block in the form of a toothed ring the number of which is equal to the number of magnetic pitches comprised by movable member 30 , or an integer multiple of this number of pitches.

[0055] Advantageously, watch 100 is arranged so that control bezel 20 can drive movable member 30 only by a rotational movement in the second rotational direction.

[0056] Even more specifically, in an alternative embodiment in which the control bezel 20 is arranged to drive the movable element 30 by a non-contact transmission mechanism formed by a magnetic transmission mechanism and in which the watch 100 is arranged so that the control bezel 20 can drive the movable element 30 only by a rotational movement in the second rotational direction (clockwise), the watch 100 includes a third pawl mechanism arranged between the movable element 30 and a component integral with the middle piece 50 or the middle piece 50 so as to prevent the movable element 30 from being driven during the rotational movement of the control bezel 20 in the first rotational direction.

[0057] More specifically, the movable member 30 is movable in a single rotational direction (i.e., the second rotational direction) and includes a notch or a pawl arranged to cooperate with a pawl or a notch respectively carried by or included in the middle piece 50 or plate 60 of the watch 100, the notch and the pawl constituting the third pawl mechanism. Still more specifically, the movable member 30 includes a notch arranged to cooperate with an internal pawl 31 carried by or included in the middle piece 50 or plate 60 of the watch 100.

[0058] In particular, and whatever the nature of the transmission mechanism between the control bezel 20 and the movable member 30, the control bezel 20 is arranged to drive the movable member 30 by means of a unidirectional mechanical transmission mechanism comprising a pawl mechanism or an upstream detachable mechanism 70 arranged upstream of the movable member 30 so as to allow the movable member 30 to be driven only by a rotational movement of the control bezel 20 in the second rotational direction S2. In addition, and still more specifically, as Fig.13 As can be seen, the control bezel 20 rotating about the rotation axis D coaxially includes an internally toothed transmission wheel 29, which is arranged to drive the movable member 30 by means of an upstream detachable mechanism 70, which is arranged for unidirectional driving of an offset wheel 72, which constitutes or drives the movable member 30 and is offset relative to the rotation axis D under the action of a pinion 73, which is also offset relative to the rotation axis D and is permanently engaged with the internally toothed transmission wheel 29 and is maintained to be guided in an oblong groove 76 formed in the fixed bridge portion 71 between the extreme stop positions 76A and 76B, which is coaxial with the rotation axis D, and the pinion 73 is arranged to engage with the offset wheel 72 when the control bezel 20 rotates in the second rotation direction, and to disengage from the offset wheel 72 when the control bezel 20 rotates in the first rotation direction. Fig.14 and Fig.15Details of this alternative embodiment are shown with a particular embodiment in which an offset wheel 72 with mechanical transmission is housed in the upper space between the watch glass and the flat surface of the middle piece 50 or plate 60 contained in the watch 100 and is arranged to drive a lower wheel 39 located below this flat portion, on the opposite side of the offset wheel 72, arranged to pivot above the middle piece 50 or plate 60 and capable of being driven by a pinion 73. The offset wheel 72 is connected to this lower wheel 39 housed in a sealed chamber of the watch by an arbour 35 sealed by at least one seal 58, coaxially along the axis of rotation D2 of the offset wheel 72, the assembly being produced by a square 36.

[0059] In particular, Figure 1 , Figure 2 and Figures 6 to 12 In the various alternative embodiments shown, movable member 30 is a ring inside middle piece 50 and is coaxial with control bezel 20 and display bezel 10 .

[0060] When the display bezel 10 is arranged to be rotatable only in the first rotational direction S1 relative to the middle piece 50 via a first detent mechanism arranged between the middle piece 50 and the display bezel 10, the display bezel 10 advantageously comprises a notch or a detent arranged to cooperate respectively with a detent or a notch carried by or included in the middle piece 50, the notch and the detent constituting the first detent mechanism and being combined and arranged together to prevent the display bezel 10 from rotating in the second rotational direction. Still more particularly, and as Figure 1 , Figure 7 , Figure 8 and Fig. 9 As can be seen in , display bezel 10 comprises a first front notch 11 arranged to cooperate with a front intermediate click 55 carried by or comprised in middle piece 50 .

[0061] When the unidirectional drive mechanism of the display bezel 10 is formed by a second pawl mechanism, the control bezel 20 advantageously comprises a notch or a pawl arranged to cooperate respectively with a pawl or a notch comprised in the display bezel 10, said notch and pawl constituting said second pawl mechanism and being combined and arranged together to apply a single drive direction to the display bezel 10 by the control bezel 20. More particularly, the control bezel 20 comprises a second notch 21 arranged to cooperate with a first front pawl 15 carried by or comprised in the display bezel 10, said first front pawl comprising a detent 150. Still more particularly, this second notch 21 is arranged to cooperate with the first pawl 15 in a direction opposite to that of the intermediate pawl 55 of the first pawl mechanism, said intermediate pawl 55 comprising a detent 550.

[0062] In another alternative embodiment, and regardless of the nature of the transmission mechanism between the control bezel 20 and the movable member 30, the control bezel 20 is arranged to drive the movable member 30 via a bidirectional mechanical transmission mechanism. In addition, the movable member 30 arranged to be rotatable about the rotation axis D is arranged to be able to operate and / or control a downstream mechanical device located downstream of the movable member 30 in the watch 100 via a downstream detachable mechanism 700 or a downstream pawl mechanism, the downstream detachable mechanism 700 or the downstream pawl mechanism being arranged so that the movable member 30 can operate and / or control the downstream mechanical device only by a rotational movement applied to the control bezel 20 by the user in the second rotational direction.

[0063] In yet another alternative embodiment, and in the case of a non-contact transmission mechanism between the control bezel 20 and the movable member 30, the movable member 30 arranged to be rotatable about the rotation axis D is arranged to be able to operate and / or control a downstream mechanical device located downstream of the movable member 30 in the watch 100 via a downstream detachable mechanism 700 or a downstream pawl mechanism, and the downstream detachable mechanism 700 or the downstream pawl mechanism is arranged so that the movable member can operate and / or control the downstream mechanical device only by a rotational movement applied to the control bezel 20 by the user in the second rotational direction.

[0064] In either of these two alternative embodiments, in which the movable member 30 is arranged to be able to operate and / or control a downstream mechanical device via a downstream detachable mechanism 700 or a downstream pawl mechanism, advantageously, the downstream mechanical device is arranged to be operated and / or controlled by the movable member 30 via the downstream detachable mechanism 700, the movable member comprising an internally toothed transmission wheel 29, the downstream detachable mechanism comprising an offset wheel 72 and a pinion 73, both of which are offset relative to the rotation axis D, the movable pinion 73 of the rotation axis D3 permanently engaging the internally toothed transmission wheel 29 and being held between extreme stop positions 76A and 76B to be guided in an oblong groove 76 included in the fixed bridge portion 71, the oblong groove being coaxial with the rotation axis D, the pinion 73 being arranged to engage with the offset wheel 72 when the control bezel 20 rotates in the second rotation direction, and to disengage from the offset wheel 72 when the control bezel 20 rotates in the first rotation direction, the offset wheel being rotatable about the fixed rotation axis D2. Figures 10 to 12Such an alternative embodiment is shown in which a movable member 30, shown as a ring with lower magnets 38 and an internally toothed transmission wheel 29, cooperates with a downstream decoupling mechanism 700 for blocking or driving an offset wheel 72 offset along an axis D2 relative to the common axis of rotation D of the control bezel 20 and the display bezel 10: this offset wheel 72 is guided between a plate 60 and a bridge 71 fastened to this plate 60. A pinion 73 comprises at least one trunnion 75 movable in an oblong hole 76 in this bridge 71 between extreme stop positions 76A and 76B. This pinion 73 cooperates with the toothed transmission wheel 29 and tends to be returned towards the offset wheel by means of a strip spring 74 embedded in a seat 77 in the plate 60, which spring 74 comprises a finger cooperating with the pinion 73 to keep it in an angular position about its axis of rotation D3, the position of which can be moved along a circular arc. This pinion 73 is Fig.10 and Fig.11 , its trunnion 75 abuts on the end 76A of the oblong slot 76 in the position in which it engages with the offset wheel 72, which itself controls another function inside the watch. Fig.12 The pinion 73 is shown with its trunnion 75 abutting on the other end 76B of the oblong slot 76 in its position disengaged from the offset wheel 72 .

[0065] like Fig.11 As can be seen in FIG. 1 , when the movable member 30 rotates in the second direction S2 , the pinion 73 rotates in a direction S4 that is equal to the second direction, thereby driving the biasing wheel to rotate in a direction S3 that is equal to the first direction. Fig.12 Shown with Fig.11 The opposite situation, and the disengagement between the pinion 73 and the offset wheel 72; when the movable member 30 rotates in the first direction S1, the pinion 73 rotates in a direction S5 equivalent to the first direction and moves away from the offset wheel through movement A, so that the undriven offset wheel 72 remains stationary.

[0066] In an alternative embodiment, the water resistance may be supplemented by at least one external seal 59 arranged between middle part 50 and control bezel 20 .

[0067] More specifically, in Figures 1 to 12 In the alternative embodiment shown in , movable member 30 is an inner ring coaxial along axis of rotation D with control bezel 20 and with display bezel 10 .

[0068] More specifically, the first rotational direction is counterclockwise relative to the intermediate piece 50 as viewed by a user from the display side.

[0069] In particular, watch 100 is a diver's watch.

[0070] In short, the invention makes it possible to control the display bezel on the one hand and at least one internal component of a watch located in a watertight chamber on the other hand, while avoiding the watertightness problems that are difficult to overcome with push-buttons or control crowns. Furthermore, operation via the control bezel allows the watch to be used in total safety in difficult conditions, such as in an aquatic environment, or when the user must wear gloves or a special suit to work in a protected or hazardous environment.

Claims

1. A watch (100), comprising an intermediate member (50) carrying a display bezel (10) and a control bezel (20) coaxial with the display bezel (10) and accessible to a user for operation, the control bezel (20) being rotatable in a first rotational direction and in a second rotational direction opposite to the first rotational direction, and being arranged to be able to drive the display bezel (10) only in the first rotational direction via a unidirectional driving mechanism of the display bezel under the action of a rotational movement applied to the control bezel (20) by the user in the first rotational direction, the watch comprising another movable member in addition to the display bezel, and the control bezel (20) being arranged to be able to drive the movable member (30) under the action of a rotational movement applied to the control bezel (20) by the user in the second rotational direction.

2. The watch (100) according to claim 1, characterized in that: The display bezel is arranged to be rotatable relative to the middle piece (50) only in the first rotational direction by means of a first pawl mechanism arranged between the middle piece and the display bezel.

3. The watch (100) according to claim 1 or 2, characterized in that: The unidirectional drive mechanism for the display bezel is formed by a second pawl mechanism.

4. The watch (100) according to any one of claims 1 to 3, characterized in that: The movable member (30) is accommodated inside the intermediate member (50) and is sealingly protected by the intermediate member (50).

5. The watch (100) according to claim 4, characterized in that: The control bezel (20) is arranged to drive the movable member (30) by means of a non-contact transmission mechanism formed by a magnetic transmission mechanism, and the control bezel (20) or the movable member (30) includes a magnet, which is arranged to cooperate with a magnet or at least one ferromagnetic block included in the movable member or the control bezel (20) respectively, so as to allow the movable member to be driven by the control bezel in a non-contact manner via the intermediate piece.

6. The watch (100) according to claim 5, characterized in that: The movable member (30) comprises an internal magnet (38) separated by the intermediate piece (50) from at least one external ferromagnetic mass or external magnet (28) comprised in the control bezel.

7. The watch (100) according to claim 5 or 6, characterized in that: The movable member (30) is arranged so that it can rotate; and the internal magnets (38) on the one hand and the external magnets (28) or at least one external ferromagnetic mass on the other hand are arranged in two rings that are substantially coplanar and concentric relative to a common axis of rotation (D) about which the control bezel (20) and the movable member (30) can rotate.

8. The watch (100) according to claim 5 or 6, characterized in that: The movable member (30) is arranged so that it can rotate; and the internal magnets (38) on the one hand and the external magnets (28) or at least one external ferromagnetic block on the other hand are arranged in two rings, which are parallel and stacked in the direction of a common rotation axis (D) about which the control bezel (20) and the movable member (30) can rotate.

9. The watch (100) according to any one of claims 5 to 8, characterized in that: The control bezel (20) comprises at least one ferromagnetic block in the form of a toothed ring, the number of teeth of which is equal to the number of magnetic pitches comprised by the movable member (30), or to an integer multiple of this number of magnetic pitches.

10. A watch (100) according to any one of the preceding claims, characterised in that The watch is arranged so that the control bezel (20) can drive the movable member (30) only by the rotational movement in the second rotational direction.

11. A watch according to any one of claims 5 to 9 and claim 10, characterized in that The watch comprises a third pawl mechanism arranged between the movable member and a part integral with the middle piece or the middle piece so as to prevent the movable member (30) from being driven during a rotational movement of the control bezel (20) in the first rotational direction.

12. The watch (100) according to any one of claims 1 to 4, characterized in that: The control bezel (20) is arranged to drive the movable member (30) by means of a unidirectional mechanical transmission mechanism, which includes a pawl mechanism or an upstream detachable mechanism (70) arranged upstream of the movable member (30) so as to allow the movable member to be driven only by the rotational movement of the control bezel along the second rotational direction.

13. The watch (100) according to claim 12, characterized in that: The control bezel (20) rotating about an axis of rotation (D) coaxially comprises an internally toothed transmission wheel (29) arranged to drive the movable member (30) by means of an upstream detachable mechanism (70) arranged for unidirectionally driving an offset wheel (72), the offset wheel constituting or driving the movable member (30) under the action of a pinion (73) which is also offset relative to the axis of rotation (D) and is aligned with the internally toothed transmission wheel. The wheel (29) is permanently engaged and is held between extreme stop positions (76A; 76B) to be guided in an oblong groove (76) formed in a fixed bridge (71), the oblong groove being coaxial with the rotation axis (D), the pinion (73) being arranged to engage with the offset wheel (72) when the control bezel (20) rotates in the second rotation direction, and to disengage from the offset wheel (72) when the control bezel (20) rotates in the first rotation direction.

14. The watch (100) according to any one of claims 1 to 13, characterized in that The movable member (30) is a ring located inside the middle piece and is coaxial with the control bezel (20) and coaxial with the display bezel (10).

15. The watch (100) according to any one of claims 1 to 14 and claim 2, characterized in that The display bezel (10) includes a notch or a pawl, which is arranged to cooperate respectively with a pawl or a notch carried by or included in the middle piece (50), the notch and the pawl constituting the first mechanism and being combined and arranged together to prevent the display bezel (10) from rotating in the second single rotational direction.

16. The watch (100) according to any one of claims 1 to 15 and claim 3, characterized in that The control bezel (20) includes a notch or a pawl, which is arranged to cooperate with a pawl or a notch included in the display bezel (10) respectively, and the notch and the pawl constitute the second pawl mechanism and are combined and arranged together to apply a single driving direction to the display bezel (10) through the control bezel (20).

17. The watch (100) according to any one of claims 1 to 4, characterized in that: The control bezel (20) is arranged to drive the movable component (30) by means of a bidirectional mechanical transmission mechanism; and wherein the movable component (30) arranged to be rotatable around a rotation axis (D) is arranged to be able to operate and / or control a downstream mechanical device located downstream of the movable component (30) in the watch (100) via a downstream detachable mechanism (700) or a downstream pawl mechanism, and the downstream detachable mechanism or the downstream pawl mechanism is arranged so that the movable component can operate and / or control the downstream mechanical device only by the rotational movement applied to the control bezel (20) by the user along the second rotation direction.

18. The watch (100) according to any one of claims 5 to 9, characterized in that The movable member (30) arranged to be rotatable about a rotation axis (D) is arranged to be able to operate and / or control a downstream mechanical device located downstream of the movable member (30) in the watch (100) via a downstream detachable mechanism (700) or a downstream pawl mechanism, and the downstream detachable mechanism or the downstream pawl mechanism is arranged so that the movable member can operate and / or control the downstream mechanical device only by the rotational movement applied to the control bezel (20) by the user along the second rotational direction.

19. The watch (100) according to claim 17 or 18, characterized in that: The downstream mechanical device is arranged to be operated and / or controlled by the movable member (30) including an internally toothed transmission wheel (29) via the downstream detachable mechanism (700), the downstream detachable mechanism comprising a wheel (72) and a pinion (73) both offset relative to the rotation axis (D), the pinion being permanently engaged with the internally toothed transmission wheel and being held between extreme stop positions (76A; 76B) to be guided in an oblong groove (76) included in the fixed bridge portion (71), the oblong groove being coaxial with the rotation axis (D), the pinion (73) being arranged to engage with the offset wheel (72) when the control bezel (20) rotates in the second rotation direction, and to disengage from the offset wheel when the control bezel rotates in the first rotation direction.

20. The watch (100) according to any one of claims 1 to 19, characterized in that The control bezel (20) is externally coaxial with the display bezel (10) and is arranged to laterally protect the display bezel (10).

Images