Watch with control of a display bezel and another functional device

Abstract

One aspect of the invention relates to a watch (100) comprising a caseband (50) carrying a display bezel (10), and a control bezel (20) accessible to a user for operation and rotatable in a first direction of rotation and a second direction of rotation opposite to the first and capable of driving the display bezel (10) only in the first direction of rotation, through a unidirectional drive mechanism of the display bezel, under the action of a rotational movement imparted by a user to the control bezel (20) in the first direction of rotation, the watch further comprising a movable member other than the display bezel and the control bezel (20) being arranged to be able to further drive the movable member (30) under the action of a rotational movement imparted by a user to the control bezel (20) in the second direction of rotation. The movable member is advantageously located inside the watch.

Description

Technical field of the invention

[0001] The invention relates to a watch comprising a case middle carrying a bidirectional control bezel and a display bezel arranged so as to be able to be driven in rotation by the control bezel only in a first direction of rotation, relative to said case middle, under the action of a rotational movement imparted by a user to the control bezel in said first direction of rotation.

[0002] The invention relates in particular to diving watches. Technological background

[0003] Many mechanical or smart watches on the market are equipped with functions that can be activated or operated by rotating a bezel, particularly a control bezel.

[0004] In the case of 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 carrying out safety operations, and therefore the display bezel can only turn in one direction, for the display of pessimistic or exact information. To ensure safety, an irreversible fixation is not always possible, and it is a question of reconciling a high level of resistance to external stresses and a reversible fixation, which may be necessary in the context of the maintenance of the object, or even to modify its appearance. Summary of the invention

[0005] The invention proposes to allow the user of a watch, in particular a diving watch, to operate a display bezel in a single direction of rotation and in addition to activate or adjust a functional device located inside the watch by means of a rotation of a control bezel, in particular but not limited to provided with magnetic transmission means, without impact on the water resistance of the watch.

[0006] To this end, the invention relates to a watch comprising a case middle carrying a display bezel and a control bezel coaxial with the display bezel and accessible to a user for its operation, the control bezel being movable in rotation in a first direction of rotation and in the second direction of rotation opposite to the first direction of rotation and being arranged capable of driving the display bezel only in said first direction of rotation, through a unidirectional drive mechanism of the display bezel, under the action of a rotational movement imparted by a user to the control bezel in the first direction of rotation. According to the invention, the watch further comprises a movable member other than the display bezel and the control bezel is arranged to be able to further drive said movable member under the action of a rotational movement imparted by a user to the control bezel in the second direction of rotation.

[0007] According to an advantageous characteristic, the display bezel is arranged so as to be movable in rotation only in said first direction of rotation relative to said caseband through a first ratchet mechanism arranged between this caseband and the display bezel.

[0008] According to another advantageous characteristic, said unidirectional drive mechanism of the display bezel is formed by a second ratchet mechanism.

[0009] According to a main embodiment, the moving member is housed inside the case and protected in a sealed manner by the case.

[0010] According to an advantageous embodiment, the control bezel is arranged to drive the movable member by means of contactless transmission means formed by magnetic transmission means, the control bezel or the movable member comprising magnets arranged to cooperate with magnets or at least one ferromagnetic mass that the movable member or respectively the control bezel comprises so as to allow contactless driving of the movable member by the control bezel through the caseband.

[0011] According to a preferred embodiment, the watch is arranged so that the control bezel can drive said moving member only by said rotational movement in said second direction of rotation.

[0012] In an embodiment combining the advantageous embodiment and the preferred embodiment mentioned above, the watch comprises a third ratchet mechanism arranged between said moving member and a part secured to the caseband or the caseband so as to prevent the moving member from being driven during a rotational movement of the control bezel in said first direction of rotation.

[0013] In a particular embodiment, the control bezel is arranged to drive the movable member by means of unidirectional mechanical transmission means, which comprise either a ratchet mechanism or an upstream disengageable mechanism arranged upstream of the movable member so as to allow driving of this movable member solely by said rotational movement of the control bezel in said second direction of rotation. Brief description of the figures

[0014] The aims, advantages and characteristics of the invention will appear better on reading the detailed description which follows, with reference to the appended drawings, where: there Figure 1 illustrates, schematically and in perspective cut by a radial plane passing through an axis of rotation of the bezels, a watch according to the invention, the case of which carries two external bezels, namely a display bezel which can only be controlled indirectly by a control bezel which can be operated by a user, and inside which shows a mobile member, here in the form of an internal ring, inaccessible directly from the outside of the watch, can be controlled indirectly by the control bezel, by means of a transmission, which in this variant is a magnetic transmission; in this figure two rings of magnets are coaxial, one integral with the control bezel, the other with the mobile member; the Figure 2illustrates, in a schematic and exploded perspective manner, and without the back of the watch, the superposition of the components visible on the Figure 1 ; there Figure 3 illustrates, schematically and in perspective, a view from inside the watch, without the caseband, the display bezel and the control bezel; Figure 4 is a detail of the Figure 3 , showing the alternation of the polarities of the magnets which comprise a ring of external magnets secured to the control bezel; the Figure 5 illustrates, schematically and in section along a plane passing through the axis of rotation of the control bezel, the display bezel; Figure 6 illustrates, schematically and in section along a plane passing through the axis of rotation of the control bezel, the case, sealingly enclosing the moving member, and the control bezel, with a coplanar configuration of the magnet rings of the control bezel and the moving member; Figure 7illustrates, in a similar way to the Figure 1 , the same variant with a radial configuration of the magnet rings of the control bezel and of the coaxial moving member, in the case of a rotation of the control bezel in the first counterclockwise direction; figure 8 illustrates the watch in plan view, seen by the user, and its perspective view cut by a radial plane passing through an axis of rotation of the glasses, in the variant of the Figure 7 ; we see the blocking of the notching that the control bezel has by the lugs of a front ratchet that the display bezel carries, while the first front notching of the display bezel is not hindered by a front case ratchet, that the case carries; the figure 9 illustrates, in a similar way to the figure 8, the same mechanism, with the rotation of the control bezel in a second direction opposite to the first direction: we see that the notching of the control bezel is not hindered by the lugs of the front ratchet of the display bezel, while the first front notching of the display bezel is hindered by the lugs of the front case ratchet, which the case carries; the Figure 10illustrates in perspective a variant where the moving organ, represented with its ring of lower magnets and an internally toothed crown, cooperates with a disengagement mechanism for blocking or driving a wheel offset from the common axis of the glasses: this offset wheel is guided between a plate and a bridge; a pinion comprises a movable journal in an oblong slot that this bridge comprises, it cooperates with the toothed crown, and tends to be brought back towards the offset wheel by a leaf spring embedded in the plate; this pinion is here represented in its meshing position with the offset wheel, which itself controls another function inside the watch; the Figure 11 illustrates, in top view, the detail of the meshing between the pinion and the offset wheel, when the moving part turns in the second direction, the pinion turns in the second direction, and the offset wheel turns in the first direction; the Figure 12 illustrates the opposite case of the Figure 11 , with the detail of the disengagement between the pinion and the misaligned wheel, when the moving member turns in the first direction, the pinion turns in the first direction and moves away from the misaligned wheel, and the misaligned wheel, not driven, remains stationary; the Figure 13 illustrates, in a similar way to the Figure 10 , another variant with mechanical transmission where the control bezel directly carries a toothed crown internally, and cooperates with a clutch mechanism similar to that of the Figure 10 for blocking or driving a wheel offset from the common axis of the glasses, this offset wheel then constituting the moving member or a direct drive member of the moving member; Figure 14 illustrates, in part, a detail of the mechanism of the Figure 10 or that of the Figure 13, in section along two levels, on the one hand in the left part of the figure passing through the axis of rotation of the pinion, and on the other hand in the right part of the figure passing through the axis of rotation of the offset wheel; Figure 15 illustrates, in section through its axis of rotation, the offset wheel of the figures 13 And 14 , which can also be suitable for the variant of figures 10 to 12 , comprising an upper wheel above a plate and capable of being driven by the pinion, linked by a shaft made watertight by at least one seal to a lower wheel housed in a watertight chamber of the watch. Detailed description of the invention

[0015] The invention relates to a timepiece, more particularly a watch 100, more particularly still a diving watch. This watch 100 comprises a caseband 50, which carries a display bezel 10 which is rotatable at least in a single counterclockwise rotation direction S1 relative to the caseband 50.

[0016] The watch 100 comprises a control bezel 20, coaxial with the display bezel 10, and accessible to a user for its operation. This control bezel 20 is movable in the first direction of rotation S1 and in a second direction of rotation S2 opposite to the first direction of rotation S1, and is arranged capable of driving the display bezel 10 only in the first direction of rotation, through a unidirectional drive mechanism of the display bezel 10, under the action of a rotational movement imparted by a user to the control bezel 20 in the first direction of rotation S1. The watch 100 further comprises a movable member 30 other than the display bezel 10, and the control bezel 20 is arranged to be able to further drive this movable member 30 under the action of a rotational movement imparted by a user to the control bezel 20 in the second direction of rotation S2.

[0017] Advantageously, the display bezel 10 is arranged so as to be movable in rotation only in the first direction of rotation S1 relative to the caseband 50 through a first ratchet mechanism arranged between this caseband 50 and the display bezel. The display bezel is held axially in place by means of a circular spring 509.

[0018] According to another advantageous characteristic, the unidirectional drive mechanism of the display bezel 10 is formed by a second ratchet mechanism arranged between the control bezel and the display bezel.

[0019] Preferably, the movable member 30 is housed inside the case 50 and protected in a sealed manner by the case 50.

[0020] More particularly, the watch 100 comprises, inside the caseband 50 and thus protected in a sealed manner by the caseband 50, the movable member 30 which is coaxial with the control bezel 20 and with the display bezel 10, and which is movable in a unidirectional rotational movement in the second direction of rotation. And the control bezel 20 is arranged to drive the movable member 30 in the second direction of rotation. More particularly, in a variant illustrated in Figure 1 , the movable member 30 is an inner ring coaxial with the control bezel 20 and the display bezel 10.

[0021] More specifically, and as visible on the figures 1 And 7 à 9 , the control bezel 20 is coaxial externally with the display bezel 10, and is arranged to laterally protect the display bezel 10.

[0022] The control bezel 20 is arranged to drive the movable member 30 via transmission means which are mechanical transmission means or contactless transmission means.

[0023] More particularly still, and as visible in particular on the figures 1 And 6 à 9 , the control bezel 20 is arranged to drive the moving member 30 by means of contactless transmission means formed by magnetic transmission means, the control bezel 20 or the moving member 30 comprising magnets arranged to cooperate with magnets or at least one ferromagnetic mass that the moving member 30 or the control bezel 20 respectively comprises, so as to allow contactless driving of the moving member 30 by the control bezel 20 through the caseband 50. These magnetic transmission means are advantageous for ensuring the watch is watertight.

[0024] More particularly, the mobile member 30 comprises internal magnets 38 which are separated by the middle 50 from at least one external ferromagnetic mass or external magnets 28 which the control bezel 20 comprises.

[0025] More particularly, the control bezel 20 is arranged to drive the movable member 30 in at least the second direction of rotation under the effect of the magnetic cooperation between the movable member 30 and the control bezel 20, more particularly between the internal magnets 38 and the external magnets 28 when the movable member 30 and the control bezel 20 both comprise magnets, as illustrated by the figures 1 to 4 And 7 à 12 The watch 100 thus comprises a control bezel 20 with magnetic transmission for the internal moving part and a double ratchet system for the unidirectional mobility of the display bezel and its drive in the first direction of rotation.

[0026] The present invention is thus based, in this embodiment, on a concept of a watch control bezel 20 making it possible to transmit a movement inside the watch 100 by magnetism, in particular in both directions of rotation or in one direction only, and which does not disrupt the display of a display bezel 10 when the user operates the control bezel 20 in the clockwise direction (second direction of rotation).

[0027] In a particular embodiment, illustrated by the figures, when the user wishes to adjust his display bezel 10, which carries or includes a first ratchet 15, as visible in Figure 1 , it operates the control bezel 20 in the first counterclockwise direction S1, the outer bezel 20 carries or includes a second notch 21, which makes it possible to transmit the rotation of the control bezel 20 to the display bezel 10.

[0028] In this presentation, the term "comprising" means the case of a single-piece component, for example a bezel, in which a particular profile such as a toothing is machined, and the term "carrying" means the case where one component carries another, for example a bezel carrying an added toothed ring.

[0029] The case 50 carries or includes a case ratchet 55, which is arranged to cooperate with a first notch 11 that the display bezel 10 carries or includes. This case ratchet 55, which is reversed relative to the first ratchet 15, slides relative to the case 50 and allows the display bezel 10 to rotate in the first direction of rotation. The control bezel 20 being secured to magnets, it allows magnetic transmission with the moving member 30, to activate a function inside the watch 100 without impacting its water resistance.

[0030] When the user wishes to activate the function, in particular underwater, without disturbing the display bezel 10, he turns the control bezel 20 clockwise, the first pawl 15 becomes sliding, it therefore allows the control bezel 20 to continue to rotate, the caseband pawl 55 (mounted opposite the first pawl 15) blocks the rotation of the display bezel 10 relative to the caseband 50, and therefore avoids disturbing the display while allowing the control bezel 20 to rotate clockwise (second direction of rotation). This actuation can be used for example to trigger a luminous function, start a repeater, or any other function contained in the watch.

[0031] Different arrangements of magnetic masses are usable.

[0032] In a first arrangement, visible in Figures 6 and 7, the movable member 30 is arranged to be movable in rotation; the inner magnets 38, on the one hand, and the outer magnets 28 or the at least one outer ferromagnetic mass, on the other hand, are arranged in two rings which are substantially coplanar and concentric with respect to a common axis of rotation D around which the control bezel 20 and the movable member 30 are movable in rotation.

[0033] Thus, the internal magnets 38, on the one hand, and the external magnets 28 or the at least one external ferromagnetic mass, on the other hand, are arranged in two substantially coplanar rings, coaxial and relative to the common axis of rotation D of the control bezel 20, and of the display bezel 10; in the particular and non-limiting case of Figures 6 and 7, the axis D is also the axis of rotation of the movable member 30. This radial configuration, where the magnetic field lines are perpendicular to the axis of rotation D of the glasses, is advantageous because the friction is compensated by the magnets located on the other side of the perimeters of the inner and outer glasses. Figure 2 shows a subassembly 300, formed of the movable member 30 with the lower magnets 38, a magnetic field closing plate 40, and a notched ring 32, which cooperates with an internal ratchet 31.

[0034] In a second arrangement, visible in figures 1 , 8 and 9, the movable member 30 is arranged to be movable in rotation; and the inner magnets 38, on the one hand, and the outer magnets 28 or the at least one outer ferromagnetic mass, on the other hand, are arranged in two parallel rings and superimposed in the direction of a common axis of rotation D of rotation around which the control bezel 20 and the movable member 30 are movable in rotation. In the particular and non-limiting case of figures 1 , 8 and 9 , the axis D is also the axis of rotation of the mobile member 30.

[0035] The outer magnets 28 of the control bezel 20 can be above the inner magnets 38 of the movable member 30, the magnetic field lines are then parallel to the axis of rotation D of the bezels. However, the friction of the movable member 30 and of the control bezel 20 with the caseband 50 increases with the number of magnets, the friction forces can reach the same order of magnitude as the magnetic forces.

[0036] In a particular way, and as visible in Figure 4 , on the same ring of magnets, here a ring carrying the outer magnets 28, these magnets are of alternating polarities 28A and 28B; naturally the inner magnets 38 then have a similar arrangement. Thus a magnetic notch is obtained.

[0037] As an example for a diving wristwatch, the use of 28 magnets per bezel (cylinders with a diameter of 1.3 mm and a height of 0.85 mm) per bezel over a diameter of approximately 38 mm, with an air gap of 0.45 mm, and magnetic field closing plates 40 and 41 made of AFK sheets with a thickness of 0.2 mm, makes it possible to transmit a torque of 32 mNm between the control bezel 20 and the moving member 30, which is sufficient for the safe triggering of a watch function.

[0038] In the particular case where the control bezel 20 or the mobile member 30 comprises at least one ferromagnetic mass, an advantageous arrangement, not illustrated, concerns a mobile member comprising at least one ferromagnetic mass in the form of a toothed ring, the number of teeth of which is equal to a number of magnetic steps that the mobile member 30 or the control bezel 20 respectively comprises, or is an integer multiple of this number of magnetic steps.

[0039] More particularly, the control bezel 20 comprises at least one ferromagnetic mass in the form of such a toothed ring, the number of teeth of which is equal to a number of magnetic steps that the mobile member 30 comprises, or to an integer multiple of this number of steps.

[0040] Advantageously, the watch 100 is arranged such that the control bezel 20 can drive the moving member 30 solely by the rotational movement in the second direction of rotation.

[0041] More particularly still, in a variant where the control bezel 20 is arranged to drive the movable member 30 by means of contactless transmission means formed by magnetic transmission means, and where the watch 100 is arranged so that the control bezel 20 can drive the movable member 30 only by the rotational movement in the second direction of rotation (clockwise), the watch 100 comprises a third ratchet mechanism arranged between the movable member 30 and a part secured to the caseband 50 or the caseband 50 so as to prevent the movable member 30 from being driven during a rotational movement of the control bezel 20 in the first direction of rotation.

[0042] More particularly, the movable member 30 is movable in a single direction of rotation, namely the second direction of rotation, and comprises a notch or a pawl arranged to cooperate with respectively a pawl or a notch carried or included by the caseband 50 or a plate 60 included by the watch 100, which notch and pawl constitute this third pawl mechanism. More particularly still, the movable member 30 comprises a notch arranged to cooperate with an internal pawl 31 carried or included by the caseband 50 or a plate 60 included by the watch 100.

[0043] In particular, and whatever the nature of the transmission means 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 unidirectional mechanical transmission means, which comprise either a ratchet mechanism or an upstream disengageable mechanism 70 arranged upstream of the movable member 30 so as to allow driving of this movable member 30 solely by the rotational movement of the control bezel 20 in the second direction of rotation S2. And, more particularly still, as visible on the Figure 13, the control bezel 20, rotatable about an axis of rotation D, comprises, coaxially, an internally toothed crown 29 which is arranged to drive the movable member 30 by an upstream disengageable mechanism 70 arranged for the unidirectional drive of an offset wheel 72, which constitutes or drives the movable member 30 and which is offset relative to the axis of rotation D, under the action of a pinion 73 also offset relative to the axis of rotation D and permanently meshing with the internally toothed crown 29 and kept guided in an oblong groove 76 coaxial with the axis of rotation D which comprises a fixed bridge 71, between extreme stop positions 76A and 76B, the pinion 73 being arranged to be meshed with the offset wheel 72 when the control bezel 20 rotates in the second direction of rotation, and to be disengaged from the misaligned wheel 72 when the control bezel 20 rotates in the first direction of rotation. The Figures 14 and 15illustrate details of this variant, with a particular embodiment in which the offset wheel 72 with mechanical transmission is housed in an upper space between the watch crystal and a flat of the caseband 50, or of a plate 60, which the watch 100 comprises, and is arranged to drive a lower wheel 39 located under this flat, on the side opposite the offset wheel 72, which is arranged to pivot above the caseband 50 or the plate 60 and is capable of being driven by the pinion 73. The offset wheel 72 is connected by a shaft 35 made watertight by at least one seal 58 to this lower wheel 39 housed in a watertight chamber of the watch, coaxial with the axis of rotation D2 of the offset wheel 72, the assembly being carried out by a square 36.

[0044] In particular, in different variants illustrated in the figures 1 , 2 , And 6 à 12, the movable member 30 is an inner ring of the middle 50 and coaxial with the control bezel 20 and the display bezel 10.

[0045] When the display bezel 10 is arranged so as to be movable in rotation only in the first direction of rotation S1 relative to the caseband 50 through a first ratchet mechanism arranged between the caseband 50 and the display bezel 10, the display bezel 10 advantageously comprises a notch or a pawl, arranged to cooperate with respectively a pawl or a notch, which said caseband 50 carries or comprises, which notch and pawl constitute this first ratchet mechanism, and are combined and arranged together to prevent rotation of the display bezel 10 in the second direction of rotation. More particularly still, and as visible on the figures 1 , 7 , 8 and 9, the display bezel 10 comprises a first front notch 11, which is arranged to cooperate with a front case ratchet 55, which the case 50 carries or comprises.

[0046] When the unidirectional drive mechanism of the display bezel 10 is formed by a second ratchet mechanism, the control bezel 20 advantageously comprises a notch or a pawl arranged to cooperate with respectively a pawl or a notch that the display bezel 10 comprises, which notch and pawl constitute said second ratchet mechanism, and are combined and arranged together to impose a single driving direction of the display bezel 10 by the control bezel 20. More particularly, the control bezel 20 comprises a second notch 21, which is arranged to cooperate with a first front pawl 15 that the display bezel 10 carries or comprises, which comprises lugs 150. Even more particularly, this second notch 21 is arranged to cooperate with the first pawl 15 in the opposite direction to the caseband pawl 55 of the first ratchet mechanism. ratchet, which ratchet of case 55 has lugs 550.

[0047] In another variant, and regardless of the nature of the transmission means between the control bezel 20 and the movable member 30, the control bezel 20 is arranged to drive the movable member 30 via bidirectional mechanical transmission means. And the movable member 30, arranged to be able to rotate about an axis of rotation D, is arranged to be able to actuate and / or control a downstream mechanical device, located downstream of the movable member 30 in the watch 100, via a downstream disengageable mechanism 700 or a downstream ratchet mechanism which is arranged in such a way that the movable member 30 can actuate and / or control the downstream mechanical device solely by the rotational movement imparted by a user to the control bezel 20 in the second direction of rotation.

[0048] In yet another variant, and in the case of contactless transmission means between the control bezel 20 and the movable member 30, the movable member 30, arranged to be movable in rotation about an axis of rotation D, is arranged to be able to actuate and / or control a downstream mechanical device, located downstream of the movable member 30 in the watch 100, via a downstream disengageable mechanism 700 or a downstream ratchet mechanism which is arranged in such a way that the movable member can actuate and / or control this downstream mechanical device solely by the rotational movement imparted by a user to the control bezel 20 in the second direction of rotation.

[0049] In either of these two variants where the movable member 30 is arranged to be able to actuate and / or control a downstream mechanical device, via a downstream disengageable mechanism 700 or a downstream ratchet mechanism, advantageously this downstream mechanical device is arranged to be actuated and / or controlled by the movable member 30, which comprises an internally toothed crown 29, via the downstream disengageable mechanism 700 which comprises an offset wheel 72 and a pinion 73 both offset relative to the axis of rotation D, the movable pinion 73 of rotation axis D3 permanently meshing with the internally toothed crown 29 and being kept guided in an oblong groove 76 coaxial with the axis of rotation D, which comprises a fixed bridge 71, between extreme stop positions 76A and 76B, the pinion 73 being arranged to be meshed with the offset wheel 72, which is mobile in rotation around a fixed axis of rotation D2,when the control bezel 20 rotates in the second direction of rotation, and to be disengaged from the offset wheel 72 when the control bezel 20 rotates in the first direction of rotation. The , figures 10 to 12illustrate such a variant where the movable member 30, shown with its ring of lower magnets 38 and an internally toothed crown 29, cooperates with a downstream disengagement mechanism 700 for blocking or driving an offset wheel 72, which is offset, along an axis D2, relative to the common axis D of rotation of the control 20 and display 10 bezels: this offset wheel 72 is guided between a plate 60 and a bridge 71 fixed on this plate 60. A pinion 73 comprises at least one journal 75 movable in an oblong slot 76 which this bridge 71 comprises, between extreme stop positions 76A and 76B. This pinion 73 cooperates with the toothed crown 29, and tends to be brought back towards the offset wheel by a leaf spring 74 embedded at the level of a recess 77 in the plate 60, this spring 74 comprising a finger cooperating with the pinion 73 to maintain it in an angular position around its axis of rotation D3 whose position is movable according to an arc of a circle.This 73 pinion is shown on the . figures 10 And 11 , with its journal 75 abutting the end 76A of the oblong groove 76, in its meshing position with the offset wheel 72, which itself controls another function inside the watch. Figure 12 shows the pinion 73 with its journal 75 in abutment on the other end 76B of the oblong groove 76, in the disengaged position relative to the offset wheel 72.

[0050] As seen on the Figure 11 , when the movable member 30 rotates in the second direction S2, the pinion 73 rotates in the direction S4 equivalent to the second direction, and the then driven offset wheel rotates in the direction S3 equivalent to the first direction. Figure 12 illustrates the opposite case of the Figure 11, 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 the direction S5 equivalent to the first direction and moves away from the offset wheel according to the movement A, and as a result the offset wheel 72, not driven, remains stationary.

[0051] The sealing may, in a variant, be completed by at least one external sealing gasket 59 arranged between the case 50 and the control bezel 20.

[0052] More particularly, in the variants illustrated in figures 1 to 12 , the movable member 30 is an inner ring coaxial with the control bezel 20 and the display bezel 10 along the axis of rotation D.

[0053] More particularly, the first direction of rotation is counterclockwise relative to the case 50, seen by the user from the display side.

[0054] In particular, the 100 watch is a diving watch.

[0055] In short, the invention makes it possible to control, on the one hand, a display bezel and, on the other hand, at least one internal organ of the watch, located in watertight compartments, while avoiding the watertightness problems that are difficult to overcome at the level of pushers or control crowns. In addition, operation by a control bezel allows for safe use 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 / dangerous environment.

Claims

1. Watch (100) comprising a case (50) carrying a display bezel (10) and a control bezel (20) coaxial with the display bezel (10) and accessible to a user for its operation, the control bezel (20) being movable in rotation in a first direction of rotation and in the second direction of rotation opposite to the first direction of rotation and being arranged capable of driving the display bezel (10) only in said first direction of rotation, through a unidirectional drive mechanism of the display bezel, under the action of a rotational movement imparted by a user to the control bezel (20) in the first direction of rotation, the watch further comprising a movable member other than the display bezel and the control bezel (20) being arranged to be able to further drive said movable member (30) under the action of a rotational movement imparted by a user to the control bezel (20) in the second direction of rotation.

2. Watch (100) according to claim 1, characterized in that the display bezel is arranged so as to be movable in rotation only in said first direction of rotation relative to said caseband (50) through a first ratchet mechanism arranged between this caseband and the display bezel.

3. Watch (100) according to claim 1 or 2, characterized in that said unidirectional drive mechanism of the display bezel is formed by a second ratchet mechanism.

4. Watch (100) according to one of claims 1 to 3, characterized in that the moving member (30) is housed inside the case (50) and protected in a sealed manner by the case (50).

5. Watch (100) according to claim 4, characterized in thatthe control bezel (20) is arranged to drive the movable member (30) by means of contactless transmission means formed by magnetic transmission means, the control bezel (20) or the movable member (30) comprising magnets arranged to cooperate with magnets or at least one ferromagnetic mass that the movable member or respectively the control bezel (20) comprises so as to allow contactless driving of the movable member by the control bezel through the caseband.

6. Watch (100) according to claim 5, characterized in that the movable member (30) comprises internal magnets (38) which are separated by the case (50) from at least one external ferromagnetic mass or external magnets (28) which the control bezel comprises.

7. Watch (100) according to claim 5 or 6, characterized in that said movable member (30) is arranged to be movable in rotation; and characterized in thatThe inner magnets (38), on the one hand, and the outer magnets (28) or the at least one outer ferromagnetic mass, on the other hand, are arranged in two substantially coplanar and concentric rings with respect to a common axis of rotation (D) about which the control eyepiece (20) and the movable member (30) are rotatable.

8. Display (100) according to claim 5 or 6, characterized in that said movable member (30) is arranged to be rotatable; and characterized in that the inner magnets (38), on the one hand, and the outer magnets (28) or said at least one outer ferromagnetic mass, on the other hand, are arranged in two parallel and overlapping rings along the direction of a common axis of rotation (D) about which the control eyepiece (20) and the movable member (30) are rotatable.

9. Display (100) according to one of claims 5 to 8, characterized in thatsaid control bezel (20) comprises at least one ferromagnetic mass in the form of a toothed ring, the number of teeth of which is equal to a number of magnetic steps that said mobile member (30) comprises or to an integer multiple of this number of steps.

10. Watch (100) according to any one of the preceding claims, characterized in that the watch is arranged so that the control bezel (20) can drive said moving member (30) only by said rotational movement in said second direction of rotation.

11. Watch according to one of claims 5 to 9 and claim 10, characterized in that the watch comprises a third ratchet mechanism arranged between said moving member and a part secured to the caseband or the caseband so as to prevent the moving member (30) from being driven during a rotational movement of the control bezel (20) in said first direction of rotation.

12. Watch (100) according to one of claims 1 to 4, characterized in that the control bezel (20) is arranged to drive the movable member (30) by means of unidirectional mechanical transmission means, which comprise either a ratchet mechanism or an upstream disengageable mechanism (70) arranged upstream of the movable member (30) so as to allow driving of this movable member solely by said rotational movement of the control bezel in said second direction of rotation.

13. Watch (100) according to claim 12, characterized in thatthe control bezel (20), rotatable about an axis of rotation (D), comprises, coaxially, an internally toothed crown (29) which is arranged to drive the movable member (30) by an upstream disengageable mechanism (70) arranged for the unidirectional drive of an offset wheel (72), which constitutes or drives the movable member (30) and which is offset relative to the axis of rotation (D), under the action of a pinion (73) also offset relative to the axis of rotation (D) and permanently meshing with the internally toothed crown (29) and kept guided in an oblong groove (76) coaxial with the axis of rotation (D) which comprises a fixed bridge (71), between extreme stop positions (76A; 76B), the pinion (73) being arranged to be meshed with the offset wheel (72) when the control bezel (20) rotates in the second direction of rotation, and to be disengaged from the offset wheel (72) when the control bezel (20) rotates in the first direction of rotation.

14. Watch (100) according to one of claims 1 to 13, characterized in that said movable member (30) is a ring inside the case and coaxial with said control bezel (20) and with said display bezel (10).

15. Watch (100) according to one of claims 1 to 14 and claim 2, characterized in that said display bezel (10) comprises a notch or a pawl, arranged to cooperate with respectively a pawl or a notch, which said caseband (50) carries or comprises, which notch and pawl constitute said first ratchet mechanism, and are combined and arranged together to prevent rotation of said display bezel (10) in said second single direction of rotation.

16. Watch (100) according to one of claims 1 to 15 and claim 3, characterized in thatsaid control bezel (20) comprises a notch or a pawl arranged to cooperate with respectively a pawl or a notch that said display bezel (10) comprises, which notch and pawl constitute said second ratchet mechanism, and are combined and arranged together to impose a single driving direction of said display bezel (10) by said control bezel (20).

17. Watch (100) according to one of claims 1 to 4, characterized in that the control bezel (20) is arranged to drive the movable member (30) by means of bidirectional mechanical transmission means; and characterized in thatsaid movable member (30), arranged to be movable in rotation around an axis of rotation (D), is arranged to be able to actuate and / or control a downstream mechanical device, located downstream of said movable member (30) in said watch (100), via a downstream disengageable mechanism (700) or a downstream ratchet mechanism which is arranged in such a way that the movable member can actuate and / or control said downstream mechanical device solely by said rotational movement imparted by a user to the control bezel (20) in said second direction of rotation.

18. Watch (100) according to one of claims 5 to 9, characterized in thatsaid movable member (30), arranged to be movable in rotation around an axis of rotation (D), is arranged to be able to actuate and / or control a downstream mechanical device, located downstream of said movable member (30) in said watch (100), via a downstream disengageable mechanism (700) or a downstream ratchet mechanism which is arranged in such a way that the movable member can actuate and / or control said downstream mechanical device solely by said rotational movement imparted by a user to the control bezel (20) in said second direction of rotation.

19. Watch (100) according to claim 17 or 18, characterized in thatsaid downstream mechanical device is arranged to be actuated and / or controlled by said movable member (30), which comprises an internally toothed crown (29), via the downstream disengageable mechanism (700) which comprises a wheel (72) and a pinion (73) both offset relative to the axis of rotation (D), the pinion permanently meshing with the internally toothed crown and being kept guided in an oblong groove (76) coaxial with the axis of rotation (D), which comprises a fixed bridge (71), between extreme stop positions (76A; 76B), the pinion (73) being arranged to be meshed with the offset wheel (72) when the control bezel (20) rotates in the second direction of rotation, and to be disengaged from the offset wheel when the control bezel rotates in the first direction of rotation.

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

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