Abstract: A watch includes a first barrel complete including a first barrel arbor, a first mainspring, and a first barrel, and a second barrel complete that includes a second barrel arbor, a second mainspring, and a second barrel, is disposed side by side in a planar direction orthogonal to a shaft direction of the first barrel arbor, and receives transmission of rotation of the first barrel complete. A tooth tip circle diameter of the first barrel complete is smaller than a tooth tip circle diameter of the second barrel complete, and a thickness of the first barrel is greater than a thickness of the second barrel.

Abstract: A limiting device including an oscillator and capable of blocking this oscillator carried by the carriage of a tourbillon or karussel, which carriage includes a carriage wheel driven by an energy source of the watch or of a movement with a gear train, and carries an escapement mechanism engaging with the oscillator and including an escape pinion, this device includes a control rod, engaging with a control member external to this tourbillon or karussel, in order to push, substantially radially relative to the carriage axis, a resilient strip arranged so as to bear tangentially against the carriage wheel in order to stop the carriage upon passage of the control member from a rest position to an active position, and so as to remain remote from the carriage wheel when the control member is in the rest position thereof.

Abstract: A regulating device including an oscillator and capable of blocking this oscillator carried by the carriage of a tourbillon or karussel, and including a stop wheel, coaxial to the carriage wheel and limited in angular mobility by a stop pin limited by a slot of the carriage, and including a toothing engaging with an external control member for the rotation thereof, the carriage carries a resilient element arranged so as to bear against a wheel set of the oscillator to stop the latter when the control member is in an active position, and to remain remote from the carriage and from any wheel set of the oscillator when the control member is in a rest position, wherein the stop wheel is in another angular position relative to the carriage wheel.

Abstract: A pawl system (1) for a wheel (2) of a drivetrain for winding a horology barrel (3), including (i) a pawl (10) having at least one tooth (1a) intended to collaborate with a toothset (2a) of the wheel (2); and (ii) an element (6) for activating and deactivating the pawl, which is arranged so that, when it is in a first configuration, the at least one tooth (1a) of the pawl collaborates with the toothset (2a) directly or indirectly, notably under the effect of a return force returning the at least one tooth (1a) of the pawl against the toothset (2a), and, when the activation and deactivation element is in a second configuration, the at least one tooth (1a) of the pawl does not collaborate with the toothset (2a) or a return force returning the at least one tooth (1a) of the pawl against the toothset (2a) is reduced.

Abstract: A timepiece barrel includes a drum defining a first compartment and a superimposed second compartment; a first tubular hub secured to a first cover and housed at least partially in the first compartment; a second tubular hub secured to a second cover housed at least partially in the second compartment. Each compartment contains a spring wound into a spiral and an inner first end of which collaborates with the first and second hubs respectively and a second end of which collaborates with the drum. The compartments are open on the side of the covers and the first and second covers are free with reference to the drum and are each provided with peripheral teeth, while the drum has no teeth.

Abstract: Timepiece barrel assembly including a barrel arbor including between first and second guide shoulders, a median shoulder carrying a core and a spring mounted between a drum and this core, this barrel arbor including, between this first shoulder and this core a ratchet-holder for securing a ratchet, and this core including, on the same side as and at a distance from this ratchet-holder, a first part for guiding the pivoting of this drum, in immediate proximity to which there is fixed this ratchet at a distance from and on the same side as this first shoulder, and the ratchet-holder directly or indirectly limits the shake of this drum relative to a bearing surface of this core at the edge of a receiving surface for this spring.

Abstract: Timepiece barrel assembly, including a mainspring mounted between a drum and a receiving surface of a core coaxial to this drum about an axis. The core includes in series from a first end towards a second end: a means of fixing a ratchet, and/or a first pivot shoulder in a plate; a second pivot shoulder of this drum; a collar radially projecting relative to this shoulder and resting on an inner face of the drum towards the spring; set back radially relative to the collar, the receiving surface; set back radially relative to the receiving surface, a third pivot shoulder of a cover for closing the barrel; and a fourth pivot shoulder in a plate.

Abstract: A timepiece barrel includes: a drum (14) defining a first compartment (16a) and a second compartment (16b) which compartments are superposed; a first tubular hub (22a) secured to a first cover (24a) and housed at least partially in the first compartment; a second tubular hub (22b) secured to a second cover (24b) housed at least partially in the second compartment. Each compartment contains a spring (18a, 18b) wound into a spiral and an inner first end of which collaborates with the first and second hubs respectively and a second end of which collaborates with the drum (14). The compartments are open on the side of the covers and the first and second covers are free with reference to the drum (14) and are each provided with peripheral teeth, while the drum (14) has no teeth.

Abstract: A timepiece barrel assembly, including a barrel mainspring mounted between a barrel drum and a receiving surface of a barrel core coaxial to the drum. The spring is made of a multiphase, cobalt-nickel-chromium based alloy, having a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 9 and 21, and the maximum radius of the steel or stainless steel core relative to its pivot axis is less than nine times the maximum thickness of the spring, and the barrel assembly includes, on the spring or the drum, a mechanism limiting longitudinal clearance, towards the pivot axis, between the drum and the mainspring.

Abstract: The invention relates to a barrel spring (2) including: an inner end (5) and an outer end; a first portion (50) having a first height (H); a second portion (52) having a second height (h) that is smaller than the first height (H) and being located near the inner end (5); and, at the second portion, e.g. at the inner end, a first attachment element (51) suitable for being attached to the barrel shaft, wherein the second portion is to be inserted into a circumferentially extending groove provided on the barrel shaft.

Abstract: A mechanical timepiece movement, including a spiral spring, a barrel, the spiral spring accommodated in the barrel as an energy storage, the barrel transmitting energy of the spiral spring by a gear train to an oscillator, the oscillator including a balance as a regulating device, and a mechanism configured to reduce a torque generated by the barrel to reduce loss of energy stored in the spiral spring.

Abstract: Timepiece barrel assembly, including a mainspring mounted between a drum and a receiving surface of a core coaxial to the drum about an axis. The core includes in series from a first end towards a second end: a means of fixing a ratchet, and/or a first pivot shoulder in a plate; a pivot shoulder of the drum; a collar radially projecting relative to the shoulder and resting on an inner face of the drum towards the spring; set back radially relative to the collar, the receiving surface; set back radially relative to the receiving surface, a pivot shoulder of a cover for closing the barrel; and a second pivot shoulder in a plate.

Abstract: A timepiece barrel assembly, including a barrel mainspring mounted between a barrel drum and a receiving surface of a barrel core coaxial to the drum. The spring is made of a multiphase, cobalt-nickel-chromium based alloy, having a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 9 and 21, and the maximum radius of the steel or stainless steel core relative to its pivot axis is less than nine times the maximum thickness of the spring, and the barrel assembly includes, on the spring or the drum, a mechanism limiting longitudinal clearance, towards the pivot axis, between the drum and the mainspring.

Abstract: Timepiece barrel assembly (1) including a barrel arbour (18) including between first (181) and second (182) guide shoulders, a median shoulder (84) carrying a core (4) and a spring (2) mounted between a drum (3) and this core (4). This barrel arbour (18) includes, between this first shoulder (181) and this core (4), a ratchet-holder (81) for securing a ratchet (2). The core (4) includes, on the same side as and at a distance from this ratchet-holder (81), a first part (43) for guiding the pivoting of this drum (3), in immediate proximity to which there is fixed this ratchet (12) at a distance from and on the same side as this first shoulder (181). The ratchet-holder (81) directly or indirectly limits the shake of this drum (3) relative to a bearing surface (43A) of this core (4) at the edge of a receiving surface (5) for this spring (2).

Abstract: The watch movement comprises a motor barrel (102), a fusee (104) having a main surface that has a spiral groove (148), means (192) for winding the movement arranged to drive the fusee, a going train (200) arranged to be driven by the fusee, and a wire (106) extended between the fusee and the barrel. The watch movement additionally comprises a fixed guide (155; 255) and a winding roller (157; 257) mounted to slide on the fixed guide, wherein the winding roller is arranged to guide the wire when the fusee turns and to simultaneously assure the insertion of the wire into the groove (148) and its removal therefrom.

Abstract: A mechanical timepiece movement, including a spiral spring, a barrel, the spiral spring accommodated in the barrel as an energy storage, the barrel transmitting energy of the spiral spring by a gear train to an oscillator, the oscillator including a balance as a regulating device, and a mechanism configured to reduce a torque generated by the barrel to reduce loss of energy stored in the spiral spring.

Abstract: The tourbillon mechanism is characterized in that it includes a toothed wheel (127; 227) and at least two toothed elements (125A, 125B; 225A, 225B, 225C) pivoting in the carriage (103), the toothed wheel, which meshes with the escape pinion (111 B), being freely mounted in the carriage in a coaxial position, and said at least two toothed elements (125A, 125B; 225A, 225B, 225C) being regularly spaced around said toothed wheel (127; 227) with which said toothed elements mesh, said at least two toothed elements each being designed to mesh with the fixed toothing (119; 219), so as to connect the escape pinion to the fixed toothing.

Abstract: The invention relates to a barrel. According to the invention, the barrel further includes a device for increasing the torque of said at least one spring including additional elastic energy accumulating means provided in addition to the spiral shape of said at least one spring, said elastic means being added to said at least one spring so that the barrel torque is personalised according to the winding tension of said at least one spring.

Abstract: A differential gear for watch movement may include a central shaft whereon first and second wheels are rotatably mounted, each of which is provided with a toothing arranged to mesh with a toothing of at least one satellite borne by a satellite carrier also mounted on the central shaft. The first and second wheels may be configured to engage first and second mobiles of the watch movement, the central shaft including a toothing configured to engage a third mobile of the watch movement. Further, the satellite carrier may be secured in rotation with the central shaft by a friction device comprising a tube having a first portion arranged bearing against the central shaft and at least one second portion arranged bearing against the satellite carrier. The tube may include a substantially cylindrical skirt, wherein at least one first tab is formed in such a way that it exerts a force having a radial component on the satellite carrier.

Abstract: Driving mechanism for watch movement having: a barrel mounted on an arbor so as to be capable of turning around an axis of the arbor when the driving mechanism is wound up. A mainspring unit has a first and second spring coiled up inside the barrel in superimposed fashion and coaxial one relative to the other. The first and second springs are coupled at one of their extremities to the barrel and to the arbor, respectively. The unit has a plate mounted coaxially between the two springs, and mounted rotatively on the axis. The first and second springs are coupled at their other extremity to the centre and to the periphery of the plate, respectively, so that the two springs simultaneously wind up around the axis when the driving mechanism is wound up.

Abstract: This timepiece comprises a movement with a diameter of less than 40 mm which comprises a barrel (1) for the housing of a mainspring and of which the diameter is less than the radius of said movement. The barrel (1) comprises a cylindrical lateral wall (2), surrounded by a tooth gear (3), of which each edge (21, 21?) is closed by a disk (4, 4?) traversed axially by an opening (5, 5?) for pivoting of a barrel arbor (7). The height of said housing is between 85% and 97% of the total height of the periphery of the barrel (1).

Abstract: The mechanism avoids the rate variations due to the effect of gravitation on a regulating organ of a timepiece whose regulating organ includes a sprung balance and an escape wheel mounted onto a platform. The platform includes a counterweight and is mounted so as to freely rotate about at least a first axis relative to a plate of the movement so that this platform will rotate about the first axis under the effect of terrestrial gravitation. This mechanism includes a wheelwork with a driving kinematical chain linking the escape wheel to a barrel system of the timepiece, and a corrective kinematical chain compensating the movements and speed of the platform relative to the plate, so that these movements of the platform will not perturb the chronometry of the timepiece.

Abstract: A watch movement, includes a frame (10, 11, 20, 22, 24), defined by a first and a second parallel plane surface and defining reference planes (A, B), the second plane (B) being located alongside the movement for placing adjacent to the wrist of the wearer, at least one balance wheel (30), pivoting in bearings fixed in the frame, at least one escape mechanism (26, 28) providing support for the balance wheel, an energy source (12), clockwork finishing movements (14), connecting the energy source to the escape mechanism and motion work (42).The balance wheel turns about an axis (YY), inclined in relation to the reference planes and intersecting the same, the point of intersection (PA) of the axis (Y) with the first plane (A) being closer to the center of the movement than the point of intersection (PB) of the axis (Y) with the second plane (B).

Abstract: A timepiece includes a platen (10) and a barrel mounted on the platen, the barrel including: a drum (20) with a bottom and side walls; a shaft (14) extending through the drum at the center thereof and provided with pivoting elements (40, 54) on the platen; a leaf spring provided in the drum and co-operating with the shaft at one end and with the drum at the other end; and a lid (28) through which the shaft extends and closing the drum, a ratchet wheel (30) being kinematically connected to the shaft for winding the spring. According to the invention, the drum is pivoted via a first ball bearing (34) having a bushing (36) connected to the platen and another bushing (38) connected to the bottom of the drum.

Abstract: A timing device utilizes hybrid power to drive a movement of the timing device, the hybrid power supply functioning as an auxiliary unit to deliver power to an electro-magnetically driving unit through an automatic control unit manipulated by a mechanical energy storage status detection unit to produce mechanical energy in time to prevent the movement from stopping; a main spring barrel or a potential difference weight of the kinetic energy storage unit being driven to further drive a wheel chain of the timing device and automatically suspend driving upon the completion of winding the wheel train.

Abstract: A timepiece includes a platen (10) and a barrel mounted on the platen, the barrel including: a drum (20) with a bottom and side walls; a shaft (14) extending through the drum at the centre thereof and provided with pivoting elements (40, 54) on the platen; a leaf spring provided in the drum and co-operating with the shaft at one end and with the drum at the other end; and a lid (28) through which the shaft extends and closing the drum, a ratchet wheel (30) being kinematically connected to the shaft for winding the spring. According to the invention, the drum is pivoted via a first ball bearing (34) having a bushing (36) connected to the platen and another bushing (38) connected to the bottom of the drum.

Abstract: A differential gear for watch movement may include a central shaft whereon first and second wheels are rotatably mounted, each of which is provided with a toothing arranged to mesh with a toothing of at least one satellite borne by a satellite carrier also mounted on the central shaft. The first and second wheels may be configured to engage first and second mobiles of the watch movement, the central shaft including a toothing configured to engage a third mobile of the watch movement. Further, the satellite carrier may be secured in rotation with the central shaft by a friction device comprising a tube having a first portion arranged bearing against the central shaft and at least one second portion arranged bearing against the satellite carrier. The tube may include a substantially cylindrical skirt, wherein at least one first tab is formed in such a way that it exerts a force having a radial component on the satellite carrier.

Abstract: A timepiece includes a flexible endless ribbon (10) bearing time indications (13, 14) and stretched between two parallel rollers (11, 12), and a mechanism for turning at least one of these rollers including a spring wound up inside a barrel, an escapement and a regulator member coupled to the escapement. The spring is wound up inside at least one of the rollers which thus forms the barrel of the drive mechanism.

Abstract: The mechanism avoids the rate variations due to the effect of gravitation on a regulating organ of a timepiece whose regulating organ includes a sprung balance and an escape wheel mounted onto a platform. The platform includes an unbalance and is mounted so as to freely rotate about at least a first axis relative to a plate of the movement so that this platform will rotate about the first axis under the effect of terrestrial gravitation. This mechanism includes a wheelwork with a driving kinematical chain linking the escape wheel to a barrel system of the timepiece, and a corrective kinematical chain compensating the movements and speed of the platform relative to the plate, so that these movements of the platform will not perturb the chronometry of the timepiece, this wheelwork including one or several epicycloidal gear trains, each of which contains wheels with straight toothing exclusively.

Abstract: The invention relates to a driving member for a timepiece movement, that comprises two superimposed coaxial barrels (1, 11) coupled in series, each barrel including a spring provided in a cylindrical housing rotatingly mounted on a common shaft (20). The respective housings (2, 12) of the barrels are positioned opposite each other and do not include a lid, said springs (7, 17) being separated only by a separation washer (26) or a gap. Preferably, the separation washer (26) is made of a sheet of an anti-friction material and extends between the respective outer drums (4, 14) of the barrel housings. This arrangement can be used for increasing the height (H) of the springs, and thereby the amount of energy and the power reserve of the watch for an identical global volume of the driving member, or for reducing the total height of the driving member. The number of parts is also reduced and the mounting is made easier. Such a driving member is particularly intended for watches with a high power reserve.

Abstract: A tourbillon is disclosed which presents a carriage comprising an upper bridge 1, a lower bridge 2 and an escapement bridge 3 supporting a balance spring 4, an escapement wheel 5 and a pallet assembly 6, the lower bridge 2 presenting a circular periphery designed to fit into a groove on the outer edge of three pivoting rollers positioned between a plate and bridges of a corresponding timepiece.

Abstract: In order to counter the effects of the Earth's gravitational force on the operation of a watch movement, the timepiece includes an escapement mechanism designed to drive a finish gear-train of a watch movement which defines a reference plane, and a balance co-operating with the escapement mechanism. Particularly, the balance is mounted in a frame (28, 60), said frame pivoting about a first axis (AA, CC) relative to the reference plane, and the orientation of the frame (28, 60) relative to the first axis (AA, CC) depends on the orientation of the Earth's gravitational force.

Abstract: A timepiece movement movement comprises a casing having a mechanical energy source, a work train driven by the energy source, a fixed wheel mounted on the casing, and a tourbillion comprising a cage which bears a balance wheel, an escape mobile provided with a pinion engaging with the fixed wheel, and a cage wheel rotationally joined to the cage and provided on its periphery with a toothing engaging with the work train. The casing of this movement is constituted, in its part occupied by the tourbillion, by a transparent material. In addition, the cage wheel comprises a transparent-material platelet, which extends radially beyond the other constituents of the tourbillion.

Abstract: Watch including a movement that incorporates a tourbillon mechanism having a single cage (13, 18, 22) holding the balance (15), this cage (13, 18, 22) rotating about an axis (X—X) forming an angle with the plane of the watch movement. The axis of rotation of the balance (15) forms an angle essentially perpendicular with the axis of rotation (X—X) of the cage (13, 18, 22).

Abstract: The stop second device during precise time-setting of a watch fitted with a tourbillon (1) comprises mobile elements such as levers (14, 15, 16) mounted in the carriage (2) of the tourbillon, each of said mobile elements being returned by a return spring (28, 29, 30). These mobile elements are capable of contacting the periphery of the balance (3) of the tourbillon, to block said balance when action is exerted on at least one of said mobile elements by a shoe (17) arranged outside the carriage (2) and controlled by the time-setting stem (26) of the watch. The outer edges (18, 19, 20) of the levers are located above pillars (4) of the carriage (2), such that the shoe (17) can act on the levers without interfering with said pillars.

Abstract: The tri-axial tourbillon comprises a cage (A) containing the balance (1), the escape wheel (2) and the escape pinion (3) rotating around an axis (A1) and mounted in a second cage (B) rotating around an axis (A2), the cage (B) in turn being mounted rotably in a third cage (C) rotating around an axis (A3) that is fixed relative to the timepiece, the three axes (A1, A2, A3) being perpendicular to each other.

Abstract: The invention relates to a timepiece consisting of a main plate (24) having the following components mounted thereto: a time base which is formed by a tourbillon (16) comprising a rotatable frame, which appears in an opening (14a) in the dial (14) thereof; and time information display means which are controlled from the time base. The aforementioned display means comprise a rotatable ring (40) which appears in the opening (14a) in the dial, co-axially around the frame, and ring drive means.

Abstract: A storage device comprises a first seconds wheel, engaging with a mainspring, and a second seconds wheel, a setting wheel for connecting these two seconds wheels, a yoke on which said setting wheel is pivotably mounted, the pivot axis of this yoke and that of the second seconds wheel being coaxial, a stop wheel kinematically linked with said first seconds wheel, a finger fixedly connected to said yoke, a storage spring for exerting upon said yoke a force tending to separate said finger from said stop wheel, whereas the force exerted upon said setting wheel by said mainspring serves to press said finger against said stop wheel, so that the latter is wound to the point where a tooth of said stop wheel abuts against said finger.

Abstract: The present invention relates to a tourbillon-type timepiece mechanism, comprising a cage (8-10), means (4) for pivoting this cage on a casing (1) of the timepiece, a kinematic link (3) between the axis of this cage and a motive barrel, a hairspring (13, 16) pivoted at the center of this cage and an escapement mechanism (19, 20) engaged with this hairspring (13, 16), the pinion (20a) of the escape wheel of this escapement mechanism (19, 20) being engaged with a toothing joined to said casing (1), which toothing is borne by a crown gear (21), connected to said casing (1) by an eccentric pivot pin (22a), and by means (22a, 22b) serving to immobilize said crown gear (21) relative to said eccentric pivot pin (22a).

Abstract: A tourbillon mechanism comprises a cage (1), an escapement wheel (3), an anchor (5) and a balance wheel. The cage (1) comprises an upper portion (1a) and a lower portion (1b) with cylindrical skirts and adapted to be superposed on each other. Moreover, the cage (1) is associated with a monolithic bridge (7) ensuring the positioning of the escapement wheel (3) and of the anchor (5). The cage is of aluminum alloy treated by anodic oxidation.

Abstract: The watch provided with a tourbillon includes a regulating device (2) engaging with an escapement (3) which itself engages with a gear train (4) meshing with a fixed wheel (5). The regulating device, the escapement and the gear train are mounted on a plate (6) fixed to a pipe (7) rotatably mounted in a support plate (8, 46), this pipe being situated at the center of the watch and driven in rotation by a spring driven device (9). Preferably, the pipe (7) surrounds a cannon pinion (11) carrying a minutes hand (12), this cannon wheel in turn surrounding a shaft (13) carrying an hours hand (14). The shaft (13) and the cannon pinion (11) are connected by a motion work (15) which is situated underneath the plate.

Abstract: A mechanical timepiece comprises a tourbillon mechanism having a housing mounted for rotation about a rotational axis, an escape wheel mounted in the housing for rotation, a balance wheel mounted in the housing for undergoing rotational vibration, and a pallet-fork for transmitting the rotational force of the escape wheel to the balance wheel. The housing has a first plate, a second plate and connecting members for connecting the first and second plates in spaced-apart relation. The second plate has a gear formed on an outer peripheral surface thereof. A drive train is connected to the gear of the second plate of the housing for rotationally driving the housing.

Abstract: A mechanical timepiece comprising a barrel meshing with a tourbillon, this timepiece being characterised in that the tourbillon is supported by its base solely by a bearing whose external ring comprises a toothing which acts as a fixed wheel for driving a satellite pinion of an escapement of the tourbillon.

Abstract: A watch mechanism incorporating two barrels each containing a spring. The springs contained in each barrel are positively connected in series to each other via a gear mechanism or a common arbor.The considerable energy available makes it possible to maintain the movement of a high frequency spring balance oscillator. The barrel rotates rapidly to drive the first pinion of the train of gears with an angular velocity approximately double relative to the normal angular velocities; the torque is approximately half (600 gr.mm) that of conventional-sized watch mechanism of comparable performance.The barrels may be mounted coaxially or in the same plane and the mechanism can be arranged to be wound manually or automatically.