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: 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 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: 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.

Abstract: A timepiece and a tool to separate a back from a middle, which jointly delimit a watch case of this timepiece, inside which a horological movement is housed, this tool having the appearance of a wedge, i.e. an acute-shaped part formed by a first face and a second face which intersect at an angle of less than 90° and which are connected to one another by a rounded portion, the first face of the tool being oriented such that it extends parallel to a mean plane wherein the horological movement is located when an horologist engages this tool between the back and the middle in order to separate this back from this middle, the rounded portion being connected to the second face by a curved portion, the curvature whereof is directed towards the inside of a surface delimited by the first and second faces.

Abstract: A timepiece or piece of jewellery or gemstone jewellery made of a zinc-free, germanium-free, nickel-free, cobalt-free, indium-free gold alloy, the alloy containing, in weight percent, between 75% and 77.5% of gold, between 0.5% and 3% of palladium, between 10% and 18% of silver and between 5% and 13% of copper, wherein the respective percentages of all the alloying elements add up to 100%.

Abstract: A measuring support for a watch movement, designed to constitute a radial support, in a radial direction, of a control member or of a support zone, which includes a watch head including a watch movement, or which includes a watch movement enclosed in a test cap, in a position of radial support under stress of the watch head or respectively of the cap on the measuring support, wherein the measuring support includes either a single contact point in the radial direction, or a pair of lateral contact points that are symmetrical with respect to the radial direction.

Abstract: A Dewar device (1) for mechanical and/or functional components (2) of a watch (3), the device (1) being provided with a bracelet and a casing (4) including an enclosure (5) in which a case (6) of the watch (3) is capable of being arranged and at least one fastening device (7) fastening the case (6) of the watch (3) inside the enclosure (5) of the casing (4) while keeping it away from the set of elements (10a, 10b, 10c) of the casing (4) defining this enclosure (5), the set (10a, 10b, 10c) including at least one transparent external element (10a) made of a transparent ceramic material, in particular a transparent polycrystalline ceramic material.

Abstract: An external part including a substrate and a coating composed of the following successively superimposed layers; an opaque or semi-opaque reflective layer, configured to have a reflectance of at least 90% for wavelengths including between 600 nm and 780 nm, a transparent or semi-transparent layer, having a refractive index to include between 1.45 and 2.8 for a wavelength of 630 nm, an absorbent layer, the layers giving the coating a predetermined interference colour.

Abstract: A method for manufacturing a dial (2) of a watch (1) including a visible face (11) having a small surface, the face (11) comprising a three-dimensional representation (3) of a topographic map of the landscape, the method comprising the following steps of: producing (20) a blank (12) of the dial (2) comprising an upper face (13) provided with a three-dimensional structure (5) relating to the three-dimensional representation (3) of the landscape, the production step (20) comprising a sub-step (22) of generating topographic data for constructing the three-dimensional structure (5) in the upper face (13); treating (29) a surface (14) of the three-dimensional structure (5) of the upper face (13) of the blank (12) during which at least one visual feature of the surface (14) is modified in anticipation of obtaining the three-dimensional representation (3); and finishing (35) the blank (12) to obtain the dial (2).

Abstract: A spiral spring for a timepiece resonator mechanism, the spiral spring extending substantially in a plane and including a flexible blade wound on itself in several turns and a setting device for modifying the effective length of the wound blade, the setting device including a clamp movable along at least one ending portion of the spiral spring, the clamp extending substantially in the plane of the spiral spring, the clamp including two bearing faces arranged on either side of the wound blade in a multiplicity of positions so as to define a variable effective length of the spiral spring, the clamp and the wound blade being linked to each other by a flexible element allowing the clamp and the bearing faces to be displaced along the wound blade.

Abstract: There is provided an electronic watch including a bracelet and a watch case including at least one electrical or electronic component, the watch including at least one Dewar device configured to contain at least one of said electrical or electronic components, the at least one Dewar device including inner and outer walls and a vacuum or quasi-vacuum space defined between these said walls, the inner wall delimiting a volume wherein said at least one electrical or electronic component may be arranged.

Abstract: A timepiece or piece of jewellery includes at least one component made of a palladium-based alloy. The palladium-based alloy consists of, expressed in weight percentage: from 50% to 55% of palladium, from 45% to 50% of rhodium, more than 0% and less than or equal to 5% of silver, and more than or equal to 0% and less than or equal to 5% of at least one element R selected from the group consisting of iridium, ruthenium, platinum, titanium, zirconium, and rhenium. Said at least one component made of the palladium-based alloy has colorimetric values according to the L*a*ab chromatic model (CIE 1976) such that L* is comprised between 88 and 90, a* is lower than or equal to 0.8 and b* is lower than or equal to 3.