Abstract: A rotary wheel set system of a horological movement with a rotary wheel set, a first and a second bearing, for a first and a second pivot of the arbor of the rotary wheel set, the wheel set including a mass center in a position of its arbor, the first bearing including an endstone including a main body equipped with a pyramidal cavity configured to receive the first pivot of the arbor of the rotary wheel set, the cavity having at least three faces giving its pyramidal shape, the first pivot being capable of cooperating with the cavity of the endstone to rotate in the cavity, at least one contact zone between the first pivot and a face being generated, the normal at the contact zone or zones forming a contact angle (?h) relating to the plane perpendicular to the arbor of the pivot, wherein the contact angle (?h) is less than 45°.

Abstract: A horological movement includes an escapement with a magnetic system to generate magnetic force impulses, so as to sustain the oscillation of the mechanical resonator associated with the escapement. In order to make possible an effective self-starting of the assembly formed of the mechanical resonator and of the escapement during a winding of the barrel, after a stop of the horological movement due to the unwound barrel spring, the escape wheel includes teeth and the pallet assembly includes two mechanical pallet-stones arranged to receive, upon starting, at least one mechanical force impulse of the escape wheel via one of the teeth thereof, the mechanical force impulse generating a starting force torque on the pallet assembly that is transmitted to the balance of the mechanical resonator to begin an oscillation of the latter so that the assembly can operate normally after a starting phase.

Abstract: A method for adjusting the operating frequency of an electronic watch via a computer application installed in a portable electronic device, the adjustment method including the following steps, performed by the computer application: generating a pulsed reference signal in the portable electronic device, converting the pulsed reference signal into a modulated optical signal consisting of light pulses, transmitting the modulated optical signal to the electronic watch via the light source or via a modulation of the light emitted by the screen of the portable electronic device, and the following steps, performed by the electronic watch: reconstituting the pulsed reference signal from the modulated optical signal received by the optical sensor, correcting an inhibition value stored in the memory of an adjustment circuit of the electronic watch as a function of the pulsed reference signal.

Abstract: A wristwatch includes an outer case that comprises an opening portion, a windshield glass disposed in the opening portion, a crown arranged at a side surface of the outer case, a bezel arranged around the windshield glass, a protective member fixed to a side surface at which the crown of the outer case is disposed, wherein the protective member has a notch portion that covers at least a portion of a side surface of the outer case and at least a portion of a side surface of the bezel and exposes the crown.

Abstract: A device is for fastening a back on a middle of a watch. The back includes a cover arranged to form a bearing surface with the middle and a body arranged to rest in the middle. The device includes a ring disposed between the back and the middle, the ring being arranged to ensure the water resistance and indexing of the back. The ring includes an upper part ensuring the water resistance and a median part including positioning to ensure precise placement of the back.

Abstract: An “all or nothing” actuating mechanism for a timepiece movement is described, which includes: an actuating lever that is able to move between an inactive position and an active position; a movable control lever for moving the actuating lever between its inactive and active positions; a return member for returning the control lever to its initial position; and a control member capable of pivoting between a first state in which it locks the actuating lever in its inactive position, and a second state, in which it releases the actuating lever to allow it to move to its active position. The control lever is arranged to be able to act on the control member, and move it from its first state to its second state, the actuating mechanism including a jumper tending to return the control member to its first state.

Abstract: A winding device includes a motor for driving a watch holder carrying at least one automatic watch with a mobile oscillating mass, and a multimeter for measuring a variation in a resistive torque opposed to the motor by the watch holder equipped with watches, depending on a degree of winding of the watches. The multimeter includes a speed meter to determine a speed and/or a variation in the speed of the motor, a torque meter to determine a value of a torque and/or a variation in the torque at the watch holder, and/or a current meter to determine a value of a current and/or a variation in the current of an electric motor.

Abstract: A winding machine includes motorization means arranged to move a support, carrying at least one watch or one horological movement, along a path in a plane. The motorization means are arranged to move each support parallel to a starting position corresponding to the loading or unloading of a watch or of a movement on the support, the axes of a three-dimensional frame of reference specific to the support always remaining parallel to the oriented directions that the axes occupy in the starting position.

Abstract: The invention relates to a watch having a variable dial, and more specifically a watch that provides the wearer with the possibility of partially changing the appearance of the dial. According to the invention, the watch has a dial (1) that has at least one opening (6, 7) occupied by a removable bezel (3, 5) and the watch further has a plurality of carrying arms (9, 10) disposed radially on a carousel (8), each arm end situated on the circumference carrying a bezel (3, 5) and the carousel (8) being able to rotate about an axis perpendicular to the plane of the dial (1) and passing through the center thereof.

Abstract: A fixing device for adjusting the clearance of a balance. At least one fixing device including at least one stud holder, at least one bearing body, at least one support member and at least one holding member. At least one bearing body is configured to move relative to at least one stud holder so as to fix the adjustment of the clearance of the balance and at least one support member is configured to press at least one bearing body against at least one stud holder before being held by at least one holding member.

Abstract: An electronic watch includes a time display, an antenna, a first substrate including a light-emitting element, a second substrate including a light-receiving element, a gear including a through hole passing light from the light-emitting element therethrough, the gear being disposed between the first and second substrates, and first and second conduction members electrically coupling the first and second substrates. The second substrate includes a first wiring electrically coupled to the first substrate via the first conduction member, and a second wiring electrically coupled to the second substrate via the second conduction member. Halfway on at least one of the first and second wirings, a circuit element is coupled in series that, compared to electrical resistance when a direct current flows in the wiring, increases electrical resistance when an alternating current generated by a radio wave received by the antenna flows in the wiring.

Abstract: A horological display mechanism with an elastic hand (1) for driving, about a shaft (D), pipes mounted at the ends of a flexible blade (3), arranged to deform the flexible blade (3), including a mechanism acting on the drive train of the first pipe (2) and of the second pipe (4) and which includes two planetary wheels (82; 84) for driving the pipes (2; 4), and an input planet-carrier chassis (180) for driving the hand (1), and rotatable with a regulation cam (801), the track (802) of which includes a rising edge and falling edge. An elastic arm (803) has a distal end which cooperates with the track and a rising edge of which raises the elastic arm (803) away from the axis of the cam to consume torque, and a falling edge which makes the elastic arm move back towards the axis to restore torque to the system.

Abstract: A timepiece with a double-sided display, including a first display member and a second display member coaxial to the first display member and integral therewith with a first common arbor. The centers of mass of the first display member and the second display member are, in projection on a plane perpendicular to their common axis. The first display member and/or the second display member is arranged to display a visual animation, and is movable above a back, and, either above a mask partially and incompletely covering the back.

Abstract: A device (1000) for the winding and time-setting of a watch (1) with an oscillating resonator (2), which includes: an automatic winding mechanism (304) for a mechanical or automatic watch, which includes at least one watch reception support (305), a viewing system (1002), a stoppage monitor (500) to observe the stoppage of a resonator (2), and a controller (900) arranged to identify the stoppage time displayed by the watch (1) in the stoppage position thereof, to compute the time remaining until a synchronization between the actual time indicated by the clock (1001) and the stoppage time, and, when the remaining time has elapsed, to activate the automatic winding mechanism (304) for rewinding the power storage device of the watch (1).

Abstract: A self-winding mechanical horological movement including a pivotally oscillating weight, wherein the oscillating weight is provided with a decorative disc mounted on the oscillating weight and pivotally driven by the weight. The disc is fastened to a support that includes a stem inserted into a hole provided in the rotational shaft of the weight. The stem and the hole include non-circular section cylindrical portions corresponding with one another, so that the support and the disc are pivotally driven by the shaft. The disc forms a decoration that covers the entire surface of the movement, without requiring technical complexities. The disc can be free to undergo an axial movement in relation to the weight, so that the disc may be removed from the weight when the horological movement is dismantled from a watch case.

Abstract: A system (1) for resetting a chronograph is provided with a chronograph counting geartrain (2), which includes a minute counter having a minute wheel set (4), and a seconds counter, which includes a chronograph wheel set (3). The system includes a hammer held blocked by blocking device (11) and displaceable from an inactive position, where the hammer is blocked by the blocking device, and an active position, when the hammer is unblocked, for resetting the chronograph in contact with the various wheel sets (3, 4); a flexible element (10) connected between a reset controller (12) and the hammer for resetting the chronograph, and configured to store energy during a displacement of the controller and before unblocking the hammer blocked by the blocking device to be able, when the hammer is unblocked, to restore this stored energy and drive the hammer to reset the chronograph.