Abstract: Mechanism for displaying the day and phase of at least a first celestial body, comprising a gear train for a constant frequency gear drive on an output of a timepiece movement. This mechanism includes a means for the three-dimensional display of the day and phase of said first celestial body represented by a first mobile component, which is driven by the gear train, which includes a phase train and a day train, each in mesh on an output of this same movement. This phase train and/or this day train include at least one uncoupling means between the input and its output thereof.

Abstract: Backlash take-up timepiece wheel (10), for meshing with a second toothing (21) formed of second teeth (23) of given width (24) arranged consecutively with a second constant pitch (P2) on a second pitch diameter (22) of an opposing mobile component. This backlash take-up wheel (10) comprises, arranged to mesh with this second toothing (21), a first toothing (11) on a first pitch circle (12) comprising a series of identical pairs (2) of teeth arranged consecutively with a first constant pitch (P1) on the first pitch circle (12). Each such pair (2) comprises, on either side of a radial axis (3), a first flexible tooth (4) and a second tooth (5). Each second tooth (5) is a flexible tooth, and the distances (91, 92) measured on the first pitch circle (12) between a successive first tooth (4) and second tooth (5) are different in pairs.

Abstract: The invention pertains to the field of high frequency watch movements. The invention relates to a timepiece including a movement that has a resonator of the type with a balance and balance spring and an escape system of the type with a wheel and Swiss lever. According to the invention, the balance oscillates at more than 36,000 vibrations per hour and the escape system is at least partially pierced to decrease the inertia thereof.

Abstract: The invention relates to a silicon-based Breguet overcoil balance spring (1, 31) that includes a hairspring (3, 33) made integral coaxially with a collet (5, 35), a terminal curve (7, 37) and an elevation device (9, 39) between the outer coil (15, 45) of the hairspring and the terminal curve. According to the invention, the balance spring has two single parts secured to each other to increase the development precision of the balance spring. The invention also relates to the method of manufacturing the balance spring. The invention concerns the field of timepiece movements.

Abstract: The invention concerns a mechanism (100) for displaying, on demand, the time in a time zone, on the hands of a timepiece. It is characterized in that it includes: two memory wheels (30), each including a heart-piece (40) that pivots relative to a toothed wheel (31) between indexing positions (34) thereon, with which it cooperates via a finger-piece (41) radially returned to said positions by a spring (43), support means (50), which, between two actions by the user, connectably cooperates with a support surface (45) of a memory wheel (30) and is then disconnected from a support surface (45) of the other memory wheel (30), a differential gear (12) with a first input formed by a motion work wheel set, a second input formed by a crown (12A) of said differential gear (12) with which each memory wheel (30) meshes, and an output consisting of an hour hand (25). The invention concerns a timepiece incorporating a mechanism (100) of this type.

Abstract: The striking work device of a timepiece (1) includes a gong (2) surrounding a movement and extending in approximately one plane (x, y), and a gong-carrier (3) secured to a watch plate (8). The gong is fixed to the gong-carrier. At least one hammer (5) strikes the gong (2) to cause the gong to vibrate. The hammer (5) strikes the gong at an inclined incidence relative to the plane.

Abstract: The invention concerns a programmable and reprogrammable mechanical memory wheel (30) for a timepiece, including a wheel (31) that is mobile about an axis of rotation (33). It is wherein it includes a mobile heart-piece (40) which pivots relative to said wheel (31), between indexing positions (34) of said wheel (31) with which said heart-piece (40) is arranged to cooperate via an indexing finger (41) included therein and towards which said heart-piece is returned radially by resilient return means (43), and which includes at least one support surface (45) arranged for cooperating with a timepiece mechanism. The invention also concerns a timepiece mechanism incorporating at least one memory wheel of this type (30), wherein, in proximity to each wheel (30), it includes support means arranged for cooperating with said support surface (45) of said memory wheel (30) in a disconnectable manner.

Abstract: The striking work device of a timepiece includes a gong (4) surrounding a movement and extending in approximately one plane, and a gong-carrier secured to a watch plate of the timepiece. The gong is fixed to the gong-carrier. At least one hammer (6) of the striking work device strikes an impact surface (8) of the gong (4) to cause the gong to vibrate. The surface (8) of the gong, which the hammer strikes, is inclined relative to the normal to the one plane.

Abstract: The timepiece movement (1) includes a karussel (4) whose platform carries an escape wheel that cooperates with a balance (7). The platform is driven from the time display mechanism associated with a time-setting mechanism (32). The escape wheel is driven directly from the gear train. In addition to compensating for differences in rate due to gravity, the karussel of the invention proposes a new, complementary role: that of time indicator.

Abstract: The timepiece includes a chronograph whose hands are driven by a first gear train (4), which in turn drives a first resonator (5) and a watch whose hands are driven by a second gear train (8) independent of the first gear train, wherein the second gear train in turn drives a second resonator (9). The first (4) and second (8) gear trains are driven from a single energy source (10).

Abstract: The invention relates to an overcoil balance spring (1) including a hairspring (3) formed in a single silicon part, coaxially with a collet (5), the balance spring including a silicon terminal curve (7) and a silicon elevation device (9) between the outer coil (15) of said hairspring and said terminal curve so as to form a Breguet® overcoil balance spring. According to the invention, the elevation device (9) has a cross-shaped mechanical fastener (17) including at least two opposite arms (12, 12?, 14, 14?), which cooperate with clamping means (23, 25) respectively secured to the terminal curve (7) and the outer coil (15) of said hairspring.

Abstract: The calendar mechanism includes a 31 wheel set (31) for controlling a date indicator, a date drive means for driving the 31 wheel set, a 12 wheel set (12) for controlling a month indicator, and a monthly drive means for driving the 12 wheel set at the end of each month. The monthly drive means is activated by the 31 wheel set during the change from the end of one month to the first day of the next month. The calendar mechanism further includes a manually activated month corrector device arranged to advance the 31 wheel set in one stroke to an angular position corresponding to the indication of the first day of the next month, so that the monthly drive means, activated by the change from one month to the next, increments the 12 wheel set by one step.

Abstract: The invention relates to a Breguet overcoil balance spring (1) that includes a hairspring (3) mounted in a single part, made of micro-machinable material, and coaxially with a collet (5). According to the invention, the balance spring has a terminal curve (7) made of micro-machinable material and an elevation device (9) made of micro-machinable material between the outer coil (15) of the hairspring and the terminal curve to improve the concentric development of the balance spring. The invention also relates to the method of manufacturing the balance spring. The invention concerns the field of timepiece making.

Abstract: The anti-trip balance-spring for a timepiece escapement which has no stop member is intended to oscillate between two extreme positions, passing through a position of equilibrium. It includes a plurality of coils and further includes means for locking at least two consecutive coils when the amplitude of rotation from the position of equilibrium to at least one of the end positions, reaches a determined angle ?.

Abstract: The invention relates to an overcoil balance spring (1) including a hairspring (3) formed in a single silicon part, coaxially with a collet (5), the balance spring including a silicon terminal curve (7) and a silicon elevation device (9) between the outer coil (15) of said hairspring and said terminal curve so as to form a Breguet® overcoil balance spring. According to the invention, the elevation device (9) has a cross-shaped mechanical fastener (17) including at least two opposite arms (12, 12?, 14, 14?), which cooperate with clamping means (23, 25) respectively secured to the terminal curve (7) and the outer coil (15) of said hairspring.

Abstract: The invention relates to a timepiece (1) including a movement (5) that has a resonator (9) of the type with a balance (8) and balance spring (10) and an escape system (7) of the type with a wheel (11) and Swiss lever (13). According to the invention, the balance (8) oscillates at more than 36,000 vibrations per hour and the escape system (7) is at least partially pierced to decrease the inertia thereof.

Abstract: The invention concerns a programmable and reprogrammable mechanical memory wheel (30) for a timepiece, including a wheel (31) that is mobile about an axis of rotation (33). It is wherein it includes a mobile heart-piece (40) which pivots relative to said wheel (31), between indexing positions (34) of said wheel (31) with which said heart-piece (40) is arranged to cooperate via an indexing finger (41) included therein and towards which said heart-piece is returned radially by resilient return means (43), and which includes at least one support surface (45) arranged for cooperating with a timepiece mechanism. The invention also concerns a timepiece mechanism incorporating at least one memory wheel of this type (30), wherein, in proximity to each wheel (30), it includes support means arranged for cooperating with said support surface (45) of said memory wheel (30) in a disconnectable manner.

Abstract: The invention concerns a mechanism (100) for displaying, on demand, the time in a time zone, on the hands of a timepiece. It is characterized in that it includes: two memory wheels (30), each including a heart-piece (40) that pivots relative to a toothed wheel (31) between indexing positions (34) thereon, with which it cooperates via a finger-piece (41) radially returned to said positions by a spring (43), support means (50), which, between two actions by the user, connectably cooperates with a support surface (45) of a memory wheel (30) and is then disconnected from a support surface (45) of the other memory wheel (30), a differential gear (12) with a first input formed by a motion work wheel set, a second input formed by a crown (12A) of said differential gear (12) with which each memory wheel (30) meshes, and an output consisting of an hour hand (25). The invention concerns a timepiece incorporating a mechanism (100) of this type.

Abstract: The invention relates to a Breguet overcoil balance spring (1) that includes a hairspring (3) mounted in a single part, made of micro-machinable material, and coaxially with a collet (5). According to the invention, the balance spring has a terminal curve (7) made of micro-machinable material and an elevation device (9) made of micro-machinable material between the outer coil (15) of the hairspring and the terminal curve to improve the concentric development of the balance spring. The invention also relates to the method of manufacturing the balance spring. The invention concerns the field of timepiece making.

Abstract: The invention relates to a Breguet overcoil balance spring (1) that includes a hairspring (3) mounted in a single part, made of micro-machinable material, and coaxially with a collet (5). According to the invention, the balance spring has a terminal curve (7) made of micro-machinable material and an elevation device (9) made of micro-machinable material between the outer coil (15) of the hairspring and the terminal curve to improve the concentric development of the balance spring. The invention also relates to the method of manufacturing the balance spring. The invention concerns the field of timepiece making.