Described herein is a watch winder comprising a fixed assembly having a central shaft; a rotatable assembly rotatably mounted to the central shaft and comprising a housing having distal end configured to receive a watch; and a drive assembly mounted on the fixed assembly and configured to rotate the rotatable assembly about the central shaft and comprising a motor, drive gear, and a battery assembly operatively connected to the motor. The drive assembly is mounted to the fixed assembly within the housing of the rotatable assembly, and the central shaft extends proximally of the housing. The housing is axially mounted on the central shaft by means of a distal bearing plate and a spaced apart proximal bearing plate, wherein the drive assembly is fixed to the central shaft between the two spaced apart bearings plates.

A dial (2a, 2b) of a watch (1) including a device (3) for determining the position of at least one hand (24a, 24b) of this watch (1), such a dial (2a, 2b) having a visible face (20a) and a hidden face (20b), the dial (2a, 2b) being formed by a stack (9a, 9b) of thin layers (10, 11, 12, 13, 14) of material extending between these two faces (20a, 20b), each of the layers (10, 11, 12, 13, 14) comprising one or more of the functional elements included in the determination device (3): at least one light-detecting element (23), at least a first light source (4a) and at least a second light source (4b), a stand-alone power supply unit (21) comprising a photovoltaic module (5), and a control unit (7) for managing the operation of each light source (4a, 4b) and of the at least one light-detecting element (23).

The invention discloses a watch winder apparatus designed to enhance the winding process of mechanical watches through a sophisticated three-dimensional movement system. The apparatus features a housing that supports a uniquely designed gyroscope and gimbal mechanism. This mechanism incorporates a gimbal with a watch-holding chamber, and at least three segments rotatably coupled to enable motion in three distinct axes. Each segment's movement is driven by a dedicated set of actuators, allowing for precise control over the gimbal's orientation and rotation. A programmable microprocessor circuit within the apparatus orchestrates the operation of these actuators, enabling the execution of pre-programmed movement patterns tailored to optimally wind the watch. The microprocessor also tracks the rotations performed by each component, ensuring accurate and efficient energy transfer to the watch's mechanism.

Device for testing a watch member, comprising at least: a holding device, arranged to receive and hold in place the watch member, a fixing device, arranged to fix the holding device on a testing machine, characterized in that one of the holding device and of the fixing device comprises a counter-shape at least partially matching the other of the holding device and of the fixing device, and in that the counter-shape is arranged to allow an adjustment to fix the holding device according to at least seven distinct relative orientations between the holding device and the fixing device.

A sympathique watch (10) including a horological movement including a going train (20), a display train (30) connected to at least one display of a time value, a sympathique hand-setting mechanism and a crown (13) operated hand-setting mechanism. The sympathique hand-setting mechanism includes a coupling device (40) interposed between the going (20) and display (30) trains, the coupling device (40) being configured to adopt an uncoupled state in which it disengages the going train (20) from the display train (30) so as to allow the hands to be set on the display by means of the sympathique hand-setting mechanism, and a coupled state in which it establishes a kinematic link between the gear trains, the link allowing for sliding enabling the hands to be set on the display by means of the crown (13) operated hand-setting mechanism.

A horological calotte (200) forming a casing for a horological movement (400) according to a calibre model in a predetermined family. The movement includes a projecting control member (410) whose distal part (411) is distant from a movement axis (DM) by a radial value (VR) specific to the model. The calotte includes a ring (220) specific to the model, which is fitted in a single angular position with a bottom (210) and a cover (230) to enclose the movement (400). Its outer shape is identical for each calibre, with reference shoulders (240) defining a calotte axis (DC). The ring offsets the movement axis relative to the calotte axis in the radial direction (DR) of the control member (410), by a value such that the distal part (411) is distant from the calotte axis by a predefined value (VP) identical for all calibres of the family.

A device for measuring the humidity in the internal volume of a case of a watch, which device includes a watch including a case housing an optical system, the optical system including a transmitter transmitting a light beam, a multi-pass cell through which the light beam is intended to pass, and a receiver intended to receive the light beam once it has passed through the multi-pass cell; a management module external to the case, including a processing unit configured to communicate with the optical system and to process data transmitted thereby in order to determine the humidity present in the internal volume of the case on the basis of the absorption of the light beam by the water vapour that may be present in the internal volume of the case.

The invention relates to a tower clock, comprising: a time display unit with a clock face and at least two hands; a stepper motor which is connected to the first hand (Z1) via a first clock shaft (W1); an acceleration sensor designed as a 2D acceleration sensor or as a 3D acceleration sensor, which is attached to the first hand (Z1) or to the first clock shaft (W1); a reading unit for reading out the acceleration sensor; and a control computer coupled to the reading unit and to the stepper motor, which is designed to receive a time signal (ZS), to receive a hand position signal (PS) of the acceleration sensor read out by the reading unit and to control the stepper motor as a function of the time signal (ZS) and of the hand position signal (PS). Furthermore, the invention relates to a method for operating the tower clock.