Abstract: A correction mechanism for a timepiece date display mechanism, arranged to change the angular position of a display wheel set comprised in such a date display mechanism, this correction mechanism includes, on the one hand, a control wheel set arranged to be controlled by user action and/or by a timepiece mechanism, and on the other hand, an output wheel set arranged to cooperate with such a display wheel set; this correction mechanism includes a free wheel mechanism which is arranged to disengage the output wheel set from the control wheel set in a first relative direction of rotation, and to engage the output wheel set with the control wheel set in a second relative direction of rotation opposite to the first relative direction of rotation.

Abstract: A micro power generator is provided, including a cam structure, an electromagnetic unit, a first clutch, and a first energy converting unit. The electromagnetic unit is partially disposed in the cam structure, which includes a central shaft and a first shaft gear. The first shaft gear is rotated with the central shaft. The first clutch is telescoped on the central shaft, and rotated with the first shaft gear. The first energy converting unit is connected to the first shaft gear of the electromagnetic unit. In an energy-storing state, the first clutch is connected to the cam structure and is moved with the cam structure and the first shaft gear to move the first energy converting unit and to store the kinetic energy of the cam structure to the first energy converting unit. In a power-generating state, the first clutch is separated from the cam structure.

Abstract: A timepiece transmission device (100), particularly for a timepiece mechanism (110) and specifically for an automaton chain (5) of a timepiece movement (120), includes: a first device (1), particularly a first freewheel device (1), for unidirectionally connecting a first portion (1a) to a second portion (1b); and a brake (2) arranged so as to brake, particularly by friction, the first portion in relation to the second portion.

Abstract: Transmission device (100), for example for a watch mechanism (110), in particular for a winding train (100, 201) of a watch movement (120), including an input element (6) intended to be driven only in a first direction, an output element, a first mechanical connection arranged such that the displacement of the input element in a first direction causes the displacement of the output element in a second direction, and a second mechanical connection (9?, 9) arranged such that the displacement of the input element in the first direction causes the displacement of the output element in a third direction, the third direction being opposite the second direction.

Abstract: A reverser for a timepiece comprises a first input wheel which carries a first satellite pinion. An output mobile assembly comprises a first ratchet with which the first satellite pinion forms a click locking in rotation the output mobile assembly with respect to the first input wheel only in a first direction of rotation. A second input wheel has the same axis of rotation as the first input wheel and the output mobile assembly. A second satellite pinion and a second ratchet form together a click locking in rotation the output mobile assembly with respect to the second input wheel only in the first direction of rotation.

Abstract: Oscillating weight for automatic watch movement, having a massive peripheral ring in the shape of an arc of circle, a connecting element connecting the peripheral ring to the weight's pivoting center, wherein the connecting element is set with a plurality of stones.

Abstract: A reverser for a timepiece including a first input moving part having a first receiving toothing and integral with a first transmission toothing, a second input moving part having a second receiving toothing and integral with a second transmission toothing, a first satellite cooperating with the first transmission toothing configured to rotate in a single direction, a second satellite cooperating with the second transmission toothing configured to rotate in a single direction, the satellite being freely rotatable relative to the first satellite, a satellite carrier carrying the second satellite and an output moving part integral with the satellite carrier in which the first satellite is carried by the satellite carrier.

Abstract: The invention relates to a winding mass (10) for a watch movement, comprising a geometric rotation axis (100), a peripheral portion (10) and a connecting portion (13) between the peripheral portion (10) and the rotation axis (100), the density and the mass of the peripheral portion being greater than those of the connecting portion. The connecting portion (13) is moved by means of bird feather-like portions (20).

Abstract: Mechanical timepiece movement, including at least one energy storage means fed at the input by a ratchet driven by one winding mechanism and at the output powering a going train. The movement includes first energy take-up means connected to at least one wheel set of this going train by at least a first elastic connection, this first energy take-up means cooperating with at least one wheel set driving this ratchet, in mesh with this ratchet for powering this energy storage means by reinjecting part of the energy taken up by this energy take-up means, this wheel set driving this ratchet being uncouplable under the action of at least one uncoupling mechanism active during the operation of this winding mechanism.

Abstract: Clockwork movement for a wristwatch, comprising a kinematic chain including at least one belt (20, 21) for transmitting the movements and/or couples between at least two pulleys. The pulleys are held on the bottom plate or the bridges by ball bearings (151, 161, 171, 181). The movement is rewound by means of linear oscillating mass (14) charging four barrels (15, 16, 17, 18) through a couple distributor (40). The barrels are non-parallel to one another. The back cover is covered by inclined glasses (110, 120, 130) allowing the barrels, the linear oscillating mass and at least certain pulleys to be seen. The regulating organ (51) is removable.

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 oscillating weight is intended to be used in a self winding watch mechanism. It includes a basic part (1) made of composite material and heavy metal elements (9). The basic part includes an inner portion (5) and a peripheral portion (3), with the peripheral portion including housings in which the heavy metal elements are set.

Abstract: Device (100) for displaying a magnitude on an oscillating weight (1) for a self-winding timepiece movement (10) comprising a means (20) of displaying said magnitude by comparison to a complementary display means (30). Said display means (20) pivots coaxially to said oscillating weight (1), and is subject to a general pivoting motion resulting from the combination of a first pivoting motion synchronous with that of said oscillating weight (1), and a second pivoting motion resulting from said display means (20) being pivoted by said movement (10) relative to said complementary display means (30) integral with said oscillating weight (1). Oscillating weight (1) including such a device (100). Self-winding watch including an oscillating weight (1) comprising such a device (100), and whose motions are transmitted to a mainspring of said watch.

Abstract: A timepiece component, such as a balance, an oscillating mass or a wheel, having a structure made according to a micro-manufacturing technique, such as the DRIE technique. The component has at least one member formed in or at the periphery of the structure and made of a material different from that of the structure. This member is typically metal and is formed by electro-forming using a cavity of the structure as a mold.

Abstract: An inverter device for timepiece movements is disclosed which includes first and second toothed wheels intended to be driven in opposite rotation directions and coaxial with an output toothed member intended to be kinematically connected to a pivoting member of the timepiece movement. The wheels are connected to the output member by unidirectional transmission members adapted to transmit to the output member rotation in only the same one predefined rotation direction and to prevent the transmission of rotation of the output member in this predefined rotation direction to one or the other of the wheels. Each unidirectional transmission member includes two diametrically opposite teeth of asymmetrical shape and is connected to the output member in such a manner as to be constrained to rotate with it while being able to be moved between first and second extreme positions in a radial direction.

Abstract: Device (100) for displaying a magnitude on an oscillating weight (1) for a self-winding timepiece movement (10) comprising a means (20) of displaying said magnitude by comparison to a complementary display means (30). Said display means (20) pivots coaxially to said oscillating weight (1), and is subject to a general pivoting motion resulting from the combination of a first pivoting motion synchronous with that of said oscillating weight (1), and a second pivoting motion resulting from said display means (20) being pivoted by said movement (10) relative to said complementary display means (30) integral with said oscillating weight (1). Oscillating weight (1) including such a device (100). Self-winding watch including an oscillating weight (1) comprising such a device (100), and whose motions are transmitted to a mainspring of said watch.

Abstract: Barrel for a self-winding timepiece including a drum of axis AA provided with an internal lateral wall having friction surfaces alternating with locking structures forming salient or inward edges at the boundary of the friction surfaces and a mainspring forming a winding including an outer coil, which is friction coupled to said internal lateral wall and free to slip against said internal lateral wall in the event of overwinding of the mainspring, characterized in that said friction surfaces are demarcated, downstream relative to the direction in which said outer coil slips, by a rounded salient edge or an inward edge.

Abstract: A mechanical watch comprises a motive spring in a first spring barrel and a mechanical and/or automatic winding device. A second spring barrel and a differential having three drive trains are provided, wherein the train connected to the winding device acts on the first and second spring barrels in the same direction.

Abstract: Timepiece movement 1 including an energy source 36 coupled to an oscillating weight 2 by a first kinematic chain 3 for automatically winding the movement 1, the timepiece movement 1 being characterized in that the energy source 36 is also coupled to an actuation device 41 and a vibrating element 42 via a second kinematic chain 4 to form a vibrating alarm mechanism that can be released at a predetermined time.

Abstract: Clockwork movement for a wristwatch, comprising a kinematic chain including at least one belt (20, 21) for transmitting the movements and/or couples between at least two pulleys. The pulleys are held on the bottom plate or the bridges by ball bearings (151, 161, 171, 181). The movement is rewound by means of linear oscillating mass (14) charging four barrels (15, 16, 17, 18) through a couple distributor (40). The barrels are non-parallel to one another. The back cover is covered by inclined glasses (110, 120, 130) allowing the barrels, the linear oscillating mass and at least certain pulleys to be seen. The regulating organ (51) is removable.

Abstract: The invention concerns a timepiece movement that includes first and second energy sources, wherein the first energy source is coupled to an oscillating weight by a first kinematic chain for automatically winding the movement, and the second energy source is coupled both to an activating device, and to a vibrating element by a second kinematic chain, to form a vibrating alarm mechanism that can be activated at a predetermined time. In addition, for the timepiece movement, the vibrating element of the vibrating alarm mechanism is the oscillating weight.

Abstract: The present invention relates to a self-winding watch including an oscillating mass (8), the movements of which are transmitted to a spring barrel of the watch, this watch likewise including a device for indicating the power reserve comprising means (2) for displaying the power reserve, characterised in that the means (2) for displaying the power reserve are mounted on the oscillating mass (8).

Abstract: Automatic mechanical winding device for the driving spring of a mechanical clockwork of a wristwatch with an eccentric mass that can be swiveled on a joint, said mass having a center of mass that is radially offset from the axis of the joint, with gear means for converting the swivel or rotary motion of the eccentric mass into a motion that winds the driving spring.

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 spring device having an inside-end wheel that moves in conjunction with the inside end of a mainspring; an outside-end wheel that moves in conjunction with the outside end of the mainspring; a torque return unit that transfers part of the output torque of the mainspring from one to the other of the inside-end wheel and outside-end wheel; a duration time indicating unit that operates in conjunction with both the inside-end wheel and outside-end wheel and indicates the number of winds in the mainspring; and a torque transfer clutch unit that disengages torque transfer between the inside-end wheel and outside-end wheel by means of the torque return unit when the mainspring unwinds and the duration time indicating unit indicates a predetermined reference number of winds.

Abstract: The oscillating weight includes a primary oscillating weight (10) secured to a drive arbour (6) and at least one secondary oscillating weight (20), which is mobile relative to the primary weight to cause the initial impulse. The secondary weight (20) is formed by a part assembled to the primary weight (10) from the exterior, while being able to have a travel between two stop members (12a, 12b) of a guide means (14, 18) located on the periphery of the primary weight (10).

Abstract: There is disclosed a wristwatch having a case containing a mechanical watch movement (10) driven by a spring barrel (14) and provided with a mechanical regulator with a balance and balance-spring, which is associated, via electromagnetic coupling, with an electronic regulator driven by a quartz resonator. The rim of the balance (13) is provided with a pair of permanent magnets (38, 39). The electronic regulator includes a fixed coil (12) arranged for cooperating with said magnets via electromagnetic coupling, a rectifier (58) provided with at least one capacitor, and a circuit (60) for enslaving the frequency of the mechanical regulator to the frequency of the oscillator by braking obtained by briefly short-circuiting the coil. In order to enable a common type of mechanical movement to be used, only the balance of which is altered, the electronic regulator is formed by a structural module (11) that is entirely separate from the mechanical watch movement (10).

Abstract: To provide a self-winding timepiece having a thin and small-sized movement in which a train wheel setting apparatus for setting a balance with hairspring is efficiently arranged at the movement. A self-winding timepiece includes a main plate, a time indicating wheel, a winding stem and a switching apparatus. A movement barrel complete is arranged on a top side of the main plate and arranged to overlap a main plate reference horizontal axis line between a first region and a fourth region. A balance with hairspring is arranged on the top side of the main plate and arranged to overlap the main plate reference horizontal axis line between a second region and a third region. The switching apparatus is arranged on a back side of the main plate. A train wheel setting apparatus includes a train wheel setting portion for setting the balance with hairspring by penetrating the main plate.

Abstract: To provide a self-winding timepiece having a thin and small-sized movement in which a train wheel setting apparatus for setting a balance with hairspring is efficiently arranged at the movement. A self-winding timepiece includes a main plate, a time indicating wheel, a winding stem and a switching apparatus. A movement barrel complete is arranged on a top side of the main plate and arranged to overlap a main plate reference horizontal axis line between a first region and a fourth region. A balance with hairspring is arranged on the top side of the main plate and arranged to overlap the main plate reference horizontal axis line between a second region and a third region. The switching apparatus is arranged on a back side of the main plate. A train wheel setting apparatus includes a train wheel setting portion for setting the balance with hairspring by penetrating the main plate.

Abstract: A movement 100 of a self-winding watch has a main plate 102, a train wheel bridge 104, a center wheel bridge 106, a third wheel bridge 107 and a transmission bridge 108. An oscillating weight 160 is rotatably attached to a third bridge 107. A first transmission intermediate gear 178a is structured to mesh with a first transmission gear 180a and oscillation weight pinion 176. An eccentric shaft-part 180d is provided on the first transmission wheel 180. A pawl lever 182 is assembled between the third wheel bridge 107 and the center wheel bridge 106. The pawl lever 182 has a guide hole 182a rotatably assembled on the eccentric shaft part 180d. The eccentric motion of pawl lever 182 winds up a spiral spring.

Abstract: A temperature sensitive element within a timepiece which includes a casing, movement, mainspring and a bi-directional rotation to unidirectional rotation converting mechanism for winding the mainspring where the temperature sensitive element tends to angularly deflect with change in temperature and such tendency produces energy to wind the mainspring. More specifically, the invention in one form thereof utilizes a temperature sensitive bimetallic coil, which is restrained from radial deflection and the free end moves to rotate the shaft in the self-winding mechanism and effects self-winding of the timepiece. The free end of the coil will move with change in temperature. The coil is anchored at its inner end and the other end thereof, upon movement, will drive a driver member in the form of an orbit gear. In this embodiment, the orbit gear will drive a plurality of planet gears, which drive a sun gear mounted to a shaft.

Abstract: A transmission wheel comprises a gear having a hole and a pinion having a plurality of teeth and being removably mounted in the hole of the gear. The hole of the gear has at least one chord-shaped stop portion engaging two adjacent teeth of the pinion to prevent relative rotation between the pinion and the gear.

Abstract: The invention concerns an oscillating winding weight for a timepiece including a heavy portion secured to a connecting element connecting said heavy portion to an arbour fixed to the movement, said weight being intended to be rotatably mounted on said arbour, characterised in that said connecting element is made of a transparent or translucent material.

Abstract: A self-winding electric power generation watch capable of having an additional function structure besides a time indication and an electric power generation function by virtue of an efficient arrangement of train wheels and motors for watch, electric power generation, and additional function in a watch case. An electric power generation motor 12 for conducting self-winding electric power generation by means of rotation of a rotary weight 41a, a watch motor 11 driven by electric power of the electric power generation motor 12, a storage battery 14 for storing the electric power of the electric power generation motor 12, and a chronograph motor 13 driven by the electric power of the electric power generation motor 12 are arranged in a watch case so as to surround a center part of the watch. Watch train wheels 20 and 30, an electric power generation train wheel 40, and a chronograph train wheel 50 are disposed in a two-layer form in a region surrounded by the motors.

Abstract: The electronic circuit allows the control or regulation of the speed of rotation of a microgenerator (1) in a watch movement. The electronic circuit includes two inputs (G−, G+) connected to said microgenerator, a quartz oscillator (3, 4), an energy-dissipation circuit (9) for braking said microgenerator, energy dissipation control means (5, 6, 7, 30, 31) for controlling the energy dissipation of the energy-dissipation circuit as a function of the frequency difference between the signal coming from the quartz oscillator and the signal coming from said microgenerator, and a rectifier and voltage-transformer (2) for rectifying and multiplying the signal coming from said microgenerator, with at least one capacitor (C1, C2, C3) charged by said microgenerator via at least one switch (17, 18, 19). The momentary energy dissipation of the braking circuit can further be reduced when the capacitors are charged.

Abstract: A timepiece movement proposed has a spring which drives, via gearing, a time display and a generator (1) supplying an a.c. voltage. The generator (1) powers, via a voltage-transformer circuit (2), a first capacitative component (10). The first capacitative component (10) powers an electronic reference circuit (3, 4, 5) with a stable oscillator (3, 4) and an electronic control circuit (6, 7, 8, 9). The first capacitative component (10) is charged immediately after the movement is started for the first time by one or more passive components. The one or more passive components are replaced, or supplemented in parallel, by one or more active units as soon as the voltage of the first capacitative component (10) is sufficient to operate the one or more active units, the one or more active units having a lower electrical resistance in the pass direction then the one or more passive components.

Abstract: The timepiece movement proposed has a spring which drives, via gearing, a time display and a generator (1) supplying an a.c. voltage. The generator (1) powers, via a voltage-transformer circuit (2), a first capacitative component (10). The first capacitative component (10) powers an electronic reference circuit (3, 4, 5) with a stable oscillator (3, 4) and an electronic control circuit (6, 7, 8, 9). The first capacitative component (10) is charged immediately after the movement is started for the first time by one or more passive components. The one or more passive components are replaced, or supplemented in parallel, by one or more active units as soon as the voltage of the first capacitative component (10) is sufficient to operate the one or more active units, the one or more active units having a lower electrical resistance in the pass direction then the one or more passive components.

Abstract: An automatic watch, a complete barrel 30 is disposed on the side opposite from the dial of a main plate 22, i.e. on the front side, and has the center of rotation thereof within a first domain 310 or a fourth domain 340 of the main plate 22. An escape wheel & pinion 50, a pallet fork 60 and a balance 70 have their center of rotation within a third domain 330 or a fourth domain 340, respectively. A setting lever 120 and a yoke 130 are disposed on the front side of the main plate 22 and have their center of oscillation within the second domain 320, respectively. A yoke holder 140 holds a part of the setting lever 120 and a part of the yoke 130, respectively.

Abstract: The timepiece comprises an electrical energy generator (3) comprising a rotor (3a) and means (3b) for supplying said electrical energy in response to rotation of said rotor (3a), a source of mechanical energy (2), measuring means (Trig) coupled to said generator (3) for producing measurement pulses of the angular frequency of an alternating voltage supplied by the generator (3), braking means (K) responsive to a braking command signal for applying a braking torque to said rotor (3a), an electronic circuit (1) comprising reference means (Osc) for producing a reference signal (FR), and slaving control means (Div, Cmp, Tmr) arranged to control said braking means (K) when said measurement pulses are ahead with respect to the reference signal.

Abstract: In the mechanical selfwinding watch movement with an oscillating winding weight, the winding weight and the spring barrel driving the movement are pivoted coaxially, in the center of the movement, above the winding and the movement gears. The winding weight and the spring barrel have substantially the same thickness and they are on the same level. The spring barrel occupies almost the whole space in the path of the heavy sector of the winding weight. Due to the permissible size of such a spring barrel, the latter is able to store up an energy sufficient to keep the movement running during eight days at least.

Abstract: An oscillatory mass operative to drive the rotor of a current generator adapted to charge a capacitor feeding the clockwork of an electronic watch is situated above the dial of the watch, which dial serves as a supporting plate for this mass. The arm of the mass is articulated at the center of the clockwork by means of a ball-bearing carried by the plate constituting the dial. The hours division is of relatively small diameter, leaving free the annular part of the dial opposite which the peripheral portion of the mass moves. The dial serves at the same time as a supporting member for the outer journal ring of a ball-bearing supporting the oscillatory mass and is secured to the frame of the clockwork by means of screws. The outer journal ring of the ball-bearing supporting the mass is rigid with a pinion meshing with a pinion of gearing coupled to the rotor of an electric generator driven by the said mass.

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.