Abstract: A process for producing a metal alloy balance wheel by molding includes a) making a mold in the negative shape of the balance wheel; b) obtaining a metal alloy that has a thermal expansion coefficient of less than 25 ppm/° C. and is able to be in an at least partly amorphous state when it is heated to a temperature between its glass transition temperature and its crystallization temperature; c) putting the metal alloy into the mold, the metal alloy being heated to a temperature between its glass transition temperature and its crystallization temperature so as to be hot-molded and to form a balance wheel; d) cooling the metal alloy to obtain a balance wheel made of the metal alloy; and e) releasing the balance wheel obtained in step d) from its mold. The process also includes a step for over-molding flexible centering components in the hub.

Abstract: A timepiece includes a mainspring, a power reserve hand configured to indicate a remaining amount of windup of the mainspring, an indicator wheel provided with the power reserve hand attached thereto, and a solar wheel configured to rotate in a first direction when the mainspring is wound, rotate in a second direction reverse to the first direction when the mainspring is unwound, and provided with at least two pinions, one of the pinions configured to drive the indicator wheel.

Abstract: A display mechanism of a watch including at least one indicator member and a drive member assembly. The indicator member is mounted to rotate about a first axis of rotation and is configured to indicate a time. The indicator member also has a second axis of rotation extending along the indicator member and a rotary element mounted to rotate about the second axis of rotation. The drive assembly includes a first drive member and a second drive member such that the first drive member drives the rotary element when it is moving about the first axis of rotation.

Abstract: A timepiece includes a first motor having a rotor for rotating a hour hand, and a first train wheel group having a wheel gear rotating based on rotation of the rotor. The first train wheel group includes a third intermediate hour pinion, a first intermediate hour pinion, a twenty four hour wheel gear having a first reference load unit disposed to mesh with the third intermediate hour pinion so that a load received by the rotor fluctuates in a case where the twenty four hour wheel gear meshes with the third intermediate hour pinion, and rotating at a first reduction ratio with respect to the rotor, and a second intermediate hour wheel gear having a second reference load unit disposed to mesh with the first intermediate hour pinion so that the load received by the rotor fluctuates in a case where the second intermediate hour wheel gear meshes with the first intermediate hour pinion, and rotating at a second reduction ratio lower than the first reduction ratio with respect to the rotor.

Abstract: Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) including an inertia element (2), which includes an impulse pin (6) cooperating with a fork (8) of the lever (7), and which is subjected to the action of elastic return means (3) fixed to the plate (1) and is arranged to cooperate indirectly with an escape wheel set (4), this resonator (100) is a resonator with a virtual pivot rotating about a main direction (DP), with a flexure bearing returned by flexible strips (5) attached to the plate (1), defining a virtual pivot having a main axis (DP), the resonator (100) is attached to an elastic suspension strip (9) attached to the plate (1), allowing displacement in the main direction (DP), the plate (1) comprising shock absorber stops (11, 12), in the main direction (DP), cooperating with at least one stiff element of the inertial element (2).

Abstract: A timepiece display device comprises a timepiece body, a support plate, a timepiece driving module, a rotating optical disc, a magnetic element, a top plate, and a rotating shaft of the timepiece driving module passes through the support plate and connects to the center of the rotating optical disc to drive the rotating optical disc to rotate; a display comprises an annular base mounted in the upper chamber of the timepiece body, a dial mounted inside the annular base, an indicator element placed on the dial and corresponding to the time identifier on the dial, and a crystal covering the upper end of the annular base. The indicator element and the magnetic element are positioned by the magnetic attraction of the magnetic element, and the indicator element moves synchronously with the magnetic element to indicate the time.

Abstract: Provided is a timepiece including: hands being an hour hand, a minute hand and a second hand; a movement for driving the hands; a first dial; a first dial ring having upper and lower surfaces provided with an upper projection and a lower projection, respectively, the first dial ring being disposed on the first dial and positioned relative to the first dial by the lower projection; and a transparent second dial disposed on the first dial ring and positioned relative to the first dial ring by the upper projection, wherein one of the hands is disposed between the first dial and the second dial, while the others of the hands are disposed above the second dial.

Abstract: Example embodiments relate to GNSS time synchronization in redundant systems. A redundant system configured with two subsystems may initially synchronize clocks from both subsystems to GNSS time from a GNSS receiver. The synchronization of the first subsystem's clock may involve using a first communication link that enables communication between the first subsystem and the GNSS receiver while the synchronization of the second subsystem's clock may involve using both the first communication link and a second communication link that enables communication between the subsystems. The redundant system may then synchronize the first subsystem's clock to the second subsystem's clock while the second subsystem's clock is still synchronized to GNSS time from the GNSS receiver based on timepulses traversing a pair of wires that connect the subsystems and the GNSS receiver.

Abstract: The system (10) for fixing a timepiece movement (2) to a watch case (30) element (3) includes at least one clamp (1), in particular at least two clamps, preferably three clamps or four clamps, which is intended to come into contact firstly with the movement and secondly with the watch case element, and a device (2a?; 3a?) for modifying the stiffness of the at least one clamp, particularly for modifying the bending stiffness of the at least one clamp, when the movement is fixed and/or displaced relative to the watch case element.

Abstract: A clock comprises an alarm clock housing having a front face, a clock display occupying at least a portion of the front face, a control on the housing for activating a shade positioning function, and a processor within the housing. The processor is responsive to the control for generating at least one shade positioning command to be transmitted to at least one motorized window shade, so as to cause the motorized window shade to move to one or more position at one or more corresponding predetermined interval relative to an alarm time.

Abstract: A watch includes a control member capable of managing a primary function of the watch, such as a rotating crown or a push-piece, as well as a magnetic ball that can be manually pivoted by the user about the centre thereof. A 3D magnetic sensor is arranged in the watch to detect the orientation of the magnetic field emitted by the magnetic ball, in addition to a processor for converting an electric signal generated by the magnetic sensor into an instruction for managing one or more other electronic functions of the watch. The magnetic ball is partially arranged inside the control member such that it is accessible to a user. The watch can further comprise a proximity sensor for detecting the axial position of the control member relative to the middle of the watch.

Abstract: A balance for a horological movement, including rigid parts including a hub defining the pivot axis of the balance, a felloe sector, at least one arm connecting the felloe sector to the hub, and including a slot for receiving and gripping an inertia-block in position, the slot opening into a housing delimited on the one hand by a rigid part of the balance, and on the other hand an elastic arm including a first end integral with a rigid part of the balance, and a second free distal end. The elastic arm has a hook-shaped body, the free distal end of the hook being parallel to a part of the balance having a rigidity greater than or equal to that of the elastic arm.

Abstract: Provided is a chronograph for including an electronic computer, power supply means, a non-volatile memory and a volatile memory; control means operatively connected to said computer; a display operatively connected to said computer; the electronic computer including electronic means, including a programme defined by a machine-type language for memorising a set date on said non-volatile memory which cannot be changed after the first setting, the electronic computer further including means for calculating the elapsed time between the set date and the current date.

Abstract: An electronic timepiece including: a radio wave receiver which receives radio waves from a positioning satellite; a communicator which performs communication with an external device; a storage which stores predicted positional information of the positioning satellite acquired from other than the positioning satellite; and a processor, wherein the processor updates the predicted positional information stored in the storage by causing the communicator to acquire the predicted positional information from the external device at or after a predetermined timing corresponding to an update period of the predicted positional information before end of an effective period of the stored predicted positional information, the update period being determined in advance in the external device.

Abstract: A bearing for an arbor or staff of a rotary wheel set of a timepiece movement, the bearing including a bearing block provided with a housing and an endstone arranged inside the housing, the endstone having a main body provided with a cavity configured to receive a pivot of the arbor of the rotary wheel set, the pivot having the shape of a first cone having a first solid angle, the apex of the first cone being rounded with a predefined first radius of curvature in a range from 0.2 ?m to 50 ?m, the cavity having a second cone shape with a second solid angle, greater than the first solid angle, so that the pivot can rotate in the cavity, the apex of the second cone being rounded and having a predefined second radius of curvature. The second radius of curvature is smaller than the first radius of curvature.

Abstract: A horological display mechanism including a cam arranged to be driven by a time base, at least a first drive device of a first display of a first quantity, the drive device including a drive rack pivoting about an axis A and being arranged to cooperate, directly or indirectly, with a drive wheel of the first display, the drive rack including a first rigid part having a toothed sector and second elastically deformable part, the first rigid part and second elastically deformable part being separated by a slot receiving an eccentric arranged to cooperate with the elastically deformable part and separate the latter from the first rigid part.

Abstract: An electrical time measuring device, intended to conserve processor cycles and memory when used in indicating time interval durations, includes a computer system with a processing system having a hardware processor and a memory accessible to the processing system, a user interface controller under control of the processing system, and logic, under control of the processing system. The user interface presented thereby has various regions including an ante meridiem events region and a post meridiem events region that share a common center. Arciforms indicate the time duration of events. In various embodiments, an arciform has a first start point in one of the regions and connected to an initial arc of points that are equidistant from the common center, and a final arc of points that are equidistant from the common center connected to a first end point in a different one of the regions, with a transition indicator linking the initial arc with the final arc.

Abstract: A watch formed by a mechanical movement incorporating a mechanical resonator, including a display displaying the actual time, a correction device formed by a device for detecting the passage of at least one hand through at least one reference time position and by an electronic correction circuit allowing an overall time error for the display to be determined, and a device for braking the mechanical resonator. The correction device is arranged such that it can correct the actual time displayed as a function of the overall time error (loss or gain) previously determined. For this purpose, the correction device is arranged such that the braking device can act on the mechanical resonator during a correction period to vary the running of the drive mechanism of the display, in order to correct the actual time displayed.

Abstract: An electronic timepiece device including an electronic processing unit determining first, geolocation parameters and second parameters concerning the current legal standard time, and establishing local horizontal coordinates of the Sun from predetermined calculation rules stored in a memory of the electronic processing unit.

Abstract: An electronic device, such as a smart watch, incorporating a fluid-based pressure-sensing device is disclosed. The fluid-based pressure-sensing device includes an enclosure, a pressure sensor, a diaphragm and a sensing medium. The enclosure includes an opening and the pressure sensor is disposed inside the enclosure. The diaphragm hermetically seals the opening, and the sensing medium transfers a pressure exerted on the diaphragm to the pressure sensor. The sensing medium can be liquid oil filling a space of the enclosure, and the diaphragm is a polymer material. The pressure-sensing device may sense an environmental pressure, which may be used by the electronic device to modify its operations, change information that is displayed, and so on.