Abstract: A resonant organ (100) for a striking mechanism (200) including a gong (110a, 110b) attached to a gong holder (120), wherein the gong (110a, 110b) has a notch (117) in which a stone (1) is embedded and secured, the stone (1) including a table (3) with an impact surface suitable for being struck by a hammer (210a, 210b) of the striking mechanism (200).

Abstract: A mechanical watch or measurement instrument including metallic parts, wherein each part of the mechanical watch mechanism has a relative magnetic permeability of less than 1.01.

Abstract: 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.

Abstract: A mechanical watch or measurement instrument having metallic parts, wherein each part of the mechanical watch mechanism has a relative magnetic permeability of less than 1.01.

Abstract: A timepiece (1) including a horological movement (100) housed in a case, said horological movement (100) including a going train (5) dedicated to time division and a chronograph mechanism (200) including a chronograph train (230) configured to be coupled to the going train (5) on demand via a chronograph start/stop control device (210). The chronograph mechanism (200) includes a status indicator device (50) fixed to a coordination member (18) for rotation therewith, the status indicator device (50) including a first portion presenting a first item of information and a second portion presenting a second item of information, which is different from the first item of information, each portion of the status indicator (50) being positioned alternately facing an aperture in a mask comprised in the timepiece (1), each time the chronograph start/stop control device (210) is operated.

Abstract: A timepiece (1) including a middle (110) and an interchangeable bezel (200) fastened to said middle (110) by relative rotation of the bezel (200) relative to the middle (110), about a central axis (B), between an interlocking position and a locked position, by a bayonet fastening device (300), said bayonet fastening device (300) including first fastening elements (300a) formed on the middle (110) and second complementary fastening elements (300b) formed on the bezel (200), wherein the bayonet fastening device (300) includes a mechanical coding system (210, 116) for defining a single position in which said bezel (200) can be interlocked with the middle (110).

Abstract: A safety device for a striking-work including a first wheel, a second wheel and an actuating member. The first wheel is meshed which drives it in rotation about a shaft and it includes an abutment member. The second wheel is also in rotation about the shaft and is in contact with the abutment member. The second wheel includes a portion configured for an actuating member to act on the intermediate portion so as to move the second wheel.

Abstract: A thermal protection case for timepiece, including, in a casing, a device for holding a case of a timepiece, including first elastic pistons with mobile supports each including at least one component thermally less conductive than the casing and the case and creating a thermal barrier between them, and opposite second supports each including a pillar each with at least one component thermally less conductive than the casing and the case and creating a thermal barrier between them constituting a fixed banking support, or by a second elastic piston including a second mobile support arranged to come to bear on the case and including at least one component thermally less conductive than the casing and than the case and creating a thermal barrier between the casing and the second mobile support.

Abstract: A bezel (1) for a timepiece, including an annular slot (2) with a bottom (20) and two walls (21, 22), wherein a ring made of a luminescent material (3) is disposed on the bottom, the ring (3) being topped by a second ring (4) made of a mineral material occupying the volume of the slot. The bezel (1) includes in each of the two walls (21, 22) a seal (5, 5?) cooperating with the second ring (4).

Abstract: The water-resistant watch case includes at least one crystal mounted on an upper side of a middle, a fastening gasket positioned between an upper annular inner wall of the middle and an upper annular outer wall of the crystal. The crystal includes an annular peripheral surface below the upper annular outer wall inclined at an angle smaller than 90° in relation to an axis perpendicular to a plane of the watch case. The peripheral surface comes into contact against an annular inner surface of the middle inclined at an angle similar to the inclination of the annular peripheral surface and below the upper annular inner wall of the middle. The annular peripheral surface and/or the annular inner surface of the middle includes a domed contact portion for a contact on an annular contact line between the two surfaces.

Abstract: A system (1) for operating a horological movement of a watch, which system including a coupling device (40) configured to operate at least one function of this movement by including a control device (2) and a support piece (3) intended to be unmoving relative to the horological movement of the watch and in which piece (3) this control device (2) is movably mounted, the control device (2) including a gripping element (7) capable of being driven in a rotational motion, a first drive element (31) including the first coupling end (32) and the first drive zone (36), and a second drive element (8) mounted such that it is rigidly connected to the gripping element (7), this second drive element (8) including the second coupling end (33) and the second drive zone (37).

Abstract: An operating device (1) for a watch including a control member (2) mounted movably in a support piece (3) of the device (1), the piece (2) being intended to be unmoving relative to the horological movement of the watch, the control member (2) including a gripping element (7), a drive element (8) rigidly connected to the gripping element (7) and a transmission member (31) being rotated by the drive element (8), the transmission member (31) being configured to cooperate with a member for actuating a manual winding mechanism of the device (1), capable of storing mechanical energy, in order to operate a first function of the watch, and with a hand-setting member of the device (1) to control a second function of the watch, and the drive element (8) being configured to cooperate with an operating member (4) to operate third and fourth functions of the watch.

Abstract: A control device (1) for a watch including a crown (2) mounted movably in a support part (3) of this device (1) and intended to be fixed with respect to the movement of the watch, the crown (2) being capable of being displaced axially with respect to its longitudinal axis (A) towards a control position in which a rotational drive element (8) of the crown (2) is capable of cooperating with a ring (10) mounted movably in a casing ring (29) of a control member (4) of the device (1), the ring (10) being configured to actuate a mechanism of the watch movement implementing a function of the watch when the crown (2) is rotated.

Abstract: A ceramic part with a colour gradient, and in particular to a bezel of a timepiece, made using a method involving the injection of at least two differently-coloured ceramic materials, the ceramic materials being mixed in different weight ratios to create a plurality of mixed materials forming a colour gradient.

Abstract: A ceramic part with a colour gradient, and in particular to a bezel of a timepiece. made using a method involving the injection of at least two differently-coloured ceramic materials, the ceramic materials being mixed in different weight ratios to create a plurality of mixed materials forming a colour gradient.