A cermet and/or ceramic multi-coloured article, and in particular a bezel (1) of a timepiece, produced by a method for compressing at least two materials (2, 3) of distinct colours, the article including a relief decoration (8) of a different colour from the rest of the article, the decoration (8) being produced by laser ablation on one of the materials (3) after compression of the two materials (2, 3).

A cermet and/or ceramic multi-coloured article, and in particular a bezel (1) of a timepiece, produced by a method for compressing at least two materials (2, 3) of distinct colours, the article including a relief decoration (8) of a different colour from the rest of the article, the decoration (8) being produced by laser ablation on one of the materials (3) after compression of the two materials (2, 3).

A platinum alloy consisting, by weight, of the following elements: 95.00 to 96.00% of Pt, 1.00 to 4.95% of Ru, 0.05 to 2.00% of Ge, 0 to 2.00% of Au, any impurities with a total content 0.50%.

A method for assembling a stone on a setting support, the stone being cut to exhibit a table, a crown, a girdle and a pavilion, including the steps of: providing a substrate coated with a pattern including an electrically conductive layer covered with a resin layer, the pattern having an inner contour delimiting a hole through the coated substrate and an outer contour corresponding to the outer contour of the desired setting support; removing the resin layer; after dissolution of the resin layer, positioning the stone in the through hole, the stone resting on the electrically conductive layer; and electrodepositing a metal layer on the electrically conductive layer to form the setting support, in order to make the stone integral with the metal layer.

A method for frequency tuning a set of plates of a watch. The plates are disposed one above the other forming a watch dial with a space defined between the plates. A mechanical shock to the set of plates is generated, and the vibration frequency of each plate is checked. The vibration frequency of at least one of the plates is matched if different from the other plate so as to obtain an identical vibration frequency for each plate in order to tune the plates at least according to the first vibration eigenmode so as to avoid any contact between the plates as a result of any mechanical shock.

A timepiece part includes a base and a color toning layer provided on the base. The color toning layer includes a first oxide film, a first metal film, a protective film, and a second oxide film. The first oxide film is provided between the base and the second oxide film. Between the first oxide film and the second oxide film, the first metal film and the protective film are provided in the presented order from the side facing the first oxide film.

A timepiece part includes a base and a color toning layer provided on the base. The color toning layer includes a first oxide film, a first metal film, a protective film, and a second oxide film. The first oxide film is provided between the base and the second oxide film. Between the first oxide film and the second oxide film, the first metal film and the protective film are provided in the presented order from the side facing the first oxide film.

A horology component (1) for a timepiece, including a first portion (10) and a second portion (20), the first portion (10) comprising one part that is at least partially transparent and at least partially superposed on top of the second portion (20), this second portion (20) taking the form of a massive portion comprising a material capable of emitting at least one emission light wave if excited by at least one excitation light wave, and the at least partially transparent part of the first portion allowing an emission light wave emitted by the second portion (20) to be transmitted at least partially toward the outside of the horology component so that the horology component exhibits at least a first appearance by day and at least one different second appearance by night where the first portion (10) is backlit by an emission light wave emitted by the second portion (20).

The invention relates to a timepiece including, in addition to a crystal (34), the following external elements: a back (2), a middle (1), a dial (3) and two bracelet strands (30), at least one of these external elements comprising at least one part made of an at least partially transparent or translucent ceramic material, the timepiece further including at least two point light sources (10) releasing heat, each light source (10) being capable of being separately switched on/off and being disposed in or directly beneath said at least one external element comprising the ceramic material, each light source (10) producing light that passes through the ceramic material of said external element, and wherein each light source (10) is configured to produce localised light on a point or quasi-point area (40) of the ceramic material of the external element concerned, so as to produce localised illumination on said external element.

A method for manufacturing an external component for horology or jewellery made of a composite material including a reinforcement formed of a preferably perforated structure and a matrix composed of a synthetic material, the method including the successive steps consisting in: a) making a 3D file of the reinforcement, b) forming the reinforcement by additive manufacturing, c) embedding all or part of the reinforcement in the synthetic material. An external component for horology or jewellery can be made of a composite material including a matrix composed of a synthetic material and a reinforcement having a perforated structure obtained by additive manufacturing.