Blancpain Sa

Frederic Piguet S.a.

Eta Sa Manufacture Horlogere Suisse

Montres Breguet S.a.

Piguet, Frédéric

Marco Rochat

Edmond Capt

Bernat Monferrer

Vincent Laucella

Thierry Conus

Laurent Kaelin

Arthur Queval

Mehdi Denden

Vincent Calabrese

Samuel Cordier

Cédric Reymond

Sébastien Graf

Robin Rusterholz

Marc-Alexander Hayek

Clement Barberat

Cédric Decorsterd

Clément Barberat

Simon Guenin

A moon phase indicator mechanism, for a timepiece provided with a movement and a dial, the moon phase indicator mechanism including at least one moon disc, and at least one moon phase train driven by the timepiece movement, the moon phase train meshing with a moon phase wheel which carries the moon disc at least indirectly and in a fixed manner, the moon phase wheel taking the form of a toothed ring in order to move the moon disc with the moon phase train about an axis A.

Moon phase indicator mechanism

The invention relates to a device for the display of periods which, in succession, form an annual cycle, for a timepiece movement, comprising an indicator member for indicating said periods. It comprises at least a mechanism for controlling the duration of display of said periods including at least:

Device for the display of periods forming an annual cycle

The oscillating weight includes a drive ring and a heavy sector. The drive ring includes an annular transmission portion which has a coaxial toothing and a second annular portion concentric to the annular transmission portion, the heavy sector being fixed to the second annular portion. The drive ring further includes a plurality of connecting elements which are elastically deformable and which connect the annular transmission portion to the second annular portion.

Annular oscillating weight and timepiece comprising such an oscillating weight

The strike sound producing assembly is provided for a watch striking mechanism. The assembly includes at least one gong, which is directly integral by means of a gong-carrier with an assembly element inside a watch case to form a single piece. A first end of the gong is fixed to the gong-carrier, whereas a second end of the gong is free to move.

Assembly for producing a sound from a striking mechanism

The invention relates to a mechanism for driving a jumping element comprising a drive wheel (), an indicator of a unit of time, a jumping element () integral with said indicator and coaxial to said drive wheel () to which said jumping element () is coupled by a spring (), a cam () arranged to rock a pallet-lever () in an oscillating motion so as to release the jumping element () once per unit of time. According to the invention, the cam () and the jumping element () have distinct pivot arbors, said drive mechanism, further comprising an intermediate train kinematically connecting the drive wheel () to the cam (), and the pallet-lever () has four distinct arms (), two () of the four arms forming feelers arranged to cooperate with the cam () and the other two arms () forming escapement arms arranged to successively block and release the jumping element () once per unit of time, alternately.

Mechanism for driving a jumping element

A method for fabricating a barrel arbor for a timepiece includes wire drawing a bar to form a continuous profile, projecting or re-entrant relative to a support sector having a touching-up axis parallel to the bar axis, and whose section matches that of complementary hooking to be made on the arbor and, in a touching-up operation, machining the complete external contour of the arbor. A drive element includes a determined spiral-coiled mainspring including at an inner end hooking having a defined profile and an arbor produced by this method including the support sector for supporting the first coil, and a complementary hooking having a complementary profile to the profile for pivoting together with the mainspring.

Method of producing drive element for a timepiece barrel including a barrel arbor and mainspring

Universal running equation of time mechanism including a differential device outputting a running equation minute which indicates the difference between civil time and solar time, the running equation minute driving a true running equation minute which drives a true running equation hour, a jumper spring cooperating with a star wheel connected to an arbor carrying a true running equation hour hand, a time zone wheel carrying the true running equation hour hand, a train making it possible to apply, to the true running equation hour, the time difference associated with the longitude position of a user, the time zone wheel making it possible to apply, to the arbor carrying the true running equation hour hand the difference between the true running equation hour and the civil hour at the place where the user is located.

Universal running equation of time mechanism and method of setting the same

Universal running equation of time mechanism including a differential device outputting a running equation minute, the running equation minute driving a true minute which, via a true equation motion work drives a true hour, the civil time minute cannon-pinion driving, via a motion work wheel set, a civil hour wheel, a jumper spring, integral with the civil hour wheel, cooperating with a star having twelve teeth connected to an arbor carrying a civil hour hand, a time zone wheel also being integral with the arbor, a time difference and display train applying the time difference linked to the longitude position of the user relative to the center of the time zone to the true running equation hour, the time zone wheel applying to the civil hour wheel, in forward or backward one-hour steps, the time difference between the civil time at the place where the user is situated and the time at the center of the time zone.

Timepiece movement driving at least one output wheel set, from a means of generating a time magnitude, or a means of detecting the magnitude of the state of a control member of this movement, or a device for measuring a physical magnitude, the position of this output wheel set being linked to an instantaneous value of this magnitude, displayed on a swiveling display base and including a display wheel set cooperating with this output wheel set, this display wheel set being permanently coupled to this output wheel set and this movement including a supplementary wheel set pivoting synchronously or in an integer pivoting velocity ratio relative to supplementary wheel set.

Display of a physical magnitude on a timepiece display base

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.

Timepiece barrel assembly with reduced core diameter

The present invention relates to a correction device for changing the data of a plurality N of time-related functions displayed by a timepiece. It is characterized in that the device includes a pusher () for changing function, whose actuation moves a control wheel () and meshes said wheel with a corrector pinion () for the selected function, and a stem () whose rotation in one direction or the other pivots said control wheel (), which in turn drives one of said corrector pinions () to correct the data of said selected function by adding or subtracting.

Correction device for functions displayed by a timepiece

A mechanism for advancing, by periodic jumps, a cage of an escapement mechanism, including: a pivoting retaining mechanism authorizing or preventing pivoting of the cage, depending on whether the retaining mechanism is moving or not; and a stopping mechanism cooperating with the retaining mechanism to allow or prevent the pivoting of the retaining mechanism according to the position of the stopping mechanism. The trajectory of the retaining mechanism interferes with that of the stopping mechanism, both being external to the cage, and the retaining mechanism includes a flirt pinion carrying a flirt arranged to cooperate with the stopping mechanism and whose trajectory interferes with the stopping mechanism, the flirt pinion cooperating with a toothing of the cage, via an inverter wheel set.

Mechanism for advancing a karussel cage by periodic jumps

The timepiece movement includes a barrel, an escapement that has an escape wheel and pinion (), a balance () and a gear train for transmitting energy stored in the barrel to the escape wheel. This gear train has an intermediary wheel (), kinematically connected to the barrel by a first part of the gear train, and kinematically connected to the escape wheel () by a second part of the gear train, the second part of the gear train, and the escapement and balance are mounted in a rotating carriage () kinematically connected to the movement and arranged for rotating coaxially about the intermediary wheel () at a different speed from the speed of the intermediary wheel. The timepiece movement is characterized in that it imposes a speed of one revolution per minute on the carriage ().

Timepiece movement including a karussel

In a timepiece with a striking mechanism, for example a minute repeater watch, in order to prevent the control stem () inadvertently setting the time during operation of the striking work and causing damage, an uncoupling device is inserted in the time-setting train (), and is controlled via a mobile part of the striking mechanism. The uncoupling device includes an intermediate motion wheel () that can be moved, for example axially, from a rest position in which it is meshed with the castle wheel (). Said mobile part of the striking mechanism is preferably the strike barrel arbour (), carrying a rotating cam () with a spiral profile. At the start of actuation of the striking mechanism, the cam pushes a lifting lever (), which raises a strip () controlling the vertical movement of the intermediate motion wheel (). This interrupts the kinematic connection in the motion work train, such that the stem () can rotate the castle wheel () without producing any effect and without encountering any resistance.

Timepiece including a striking mechanism

The invention concerns a mechanical or electromechanical dive watch including hour () and minute () hands, a pressure sensor (), a depth indicator hand () and a depth variation indicator hand (), the depth indicator hand () providing a diver with an indication of the instantaneous value of the depth at which he is situated when diving, the depth variation indicator hand () being at that moment locked at zero, the depth indicator hand () being locked in turn when the diver reaches a required decompression stop and the depth variation indicator hand () being released to indicate to the diver any variations in his depth relative to the decompression stop depth, the depth variation indicator hand () then being returned to zero and locked while the depth indicator hand () is released and again indicates the exact dive depth when the diver resumes his ascent towards the surface.

Growing community of inventors

Le Brassus, Switzerland

Marco Rochat