The present disclosure relates to a case assembly for a ceramic timepiece. The case assembly is configured to accommodate a movement which includes a first groove, defining an inner periphery of a first side of the casing. The first groove accommodates a glass of the timepiece, within a thickness of the casing. Further one or more provisions are provided in a second side of the casing, where each of the one or more provisions is configured to receive an adapter. Each of the adapter receives a fastening member, for securing a back plate of the timepiece within the height of the casing. A dial including a pair of projections extending outwardly from two opposing portions of an outer periphery of the casing is provided to receive a strap of the timepiece. The configuration of the dial helps in reducing the thickness of the timepiece.

A dial for a timepiece includes a support and a mother-of-pearl sheet, the mother-of-pearl sheet having a front face and a rear face facing the support and on which a pattern has been printed. The mother-of-pearl sheet has a thickness between 50 ?m and 100 ?m so that the pattern printed on the rear face of the mother-of-pearl sheet appears transparently through the mother-of-pearl under normal conditions of illumination.

A process for decorating a dial includes a step (E1) of engraving a pattern in a pad-printing clich with a femtosecond laser, then a step (E20) of transferring said pattern to the dial using the pad-printing clich. The process can include surface structuring of the dial, then transferring the pattern to the dial at least partially superposed on surface-structuring obtained by the surface structuring, and can also include an intermediate coloring of the decorated or to be decorated surface in the surface structuring, using a different color from the color used in the transferring.

Method for cutting a watch crystal along a contour in a plate of transparent material, with the following steps: making, on a first side of the plate, a first cut line or kerf to form a first chamfer, for each crystal of the plate; turning the plate over and marking the position of the first chamfers or of a previously made machined marking; making, on a second side, a second cut line or kerf to form a second chamfer, for each crystal; separating the crystals by machining through the plate at each contour to form an edge of the crystal.

The spiral includes turns of rectangular section, whose pitch p and/or thickness e can vary from the inside curve towards the outside curve, or whose winding can deviate from the line of a perfect spiral. The inside curve can also be extended by a self-locking washer for fixing the spiral on the balance arbour with no play. The spiral is manufactured by photolithography and galvanic growth, or by micro-machining an amorphous or crystalline material, such as a silicon wafer.

The invention relates to a display system for a timepiece, said system comprising a mobile arranged to be driven by a drive source by means of first teeth provided on the mobile. According to the invention, the mobile comprises at least second teeth including a teeth module of less than 0.05 mm, said second teeth being arranged so as to drive a display member either directly or indirectly.

The method for manufacturing a timepiece movement component (1) having at least a first portion comprising a surface (11), in particular an upper surface, includes etching (E3) the surface (11) of the timepiece movement component (1) or of a blank (1a) of the timepiece movement component (1) in order to form at least one cavity (7); and depositing a material (E4) in the at least one cavity (7).

A dial for a timepiece, preferably a watch, the dial being provided with a relief portion which is made as an assembly of pieces on different levels, juxtaposed on a base, such that the relief portion is formed by the upper surfaces of the pieces. A method for manufacturing the dial with several separate pieces, the upper surfaces of the pieces being subjected to a polishing step and/or possibly an enameling step. The pieces are then cut along a defined contour and then assembled edge-to-edge on a base, so as to create the relief portion.

A process for blanking an applique for a watch dial, comprises a step of blanking with a laser beam a first part of the outline of this applique, defining a pointed zone or/and a thin groove of at least a first hollow or/and the point or/and the drawn-out portion of at least a first projecting part, and a step of blanking by means of a stamp a second part of said outline which is complementary with the first part. This hybrid blanking technology makes it possible to obtain appliques having, at the end of the blanking process according to the invention, an outline which defines at least one hollow having a pointed zone or/and a thin groove or/and which defines at least one projecting part forming a point or/and a drawn-out portion with configurations and particular dimensions that cannot be obtained by blanking merely by stamping.

The invention relates to a one-piece metal component including an electroformed metal body, the external surface of the body including, only over or to a predetermined depth, less trapped hydrogen than the rest of the electroformed metal body causing a hardening relative to the rest of the body in order to improve the wear resistance of the one-piece component while preserving a relative magnetic permeability of less than 10 and the ability to be driven or pressed fit.