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 method for machining by laser ablation or by micro-milling a raised and/or hollow structure on an impression of an injection mould. A method for manufacturing a ceramic or cermet item by injection using the injection mould to produce an item, and in particular a watch bezel, decorated directly during the injection.

Economical method for manufacturing a timepiece display or hand-fitting component, wherein: there is chosen a first material which is easy to shape or to machine; a workpiece is made in the first material; a second material is chosen to make each aesthetical and/or visible surface of component, which is an amorphous metal alloy or has a nanocrystalline structure or includes nickel or nickel-phosphorus, or which is a pure metal or an alloy of gold and/or silver and/or copper and/or rhodium and/or titanium and/or aluminium; the workpiece is coated, at least on the surfaces intended to remain visible on the component, with a thick layer, of an initial thickness greater than 20 micrometres, of the second material; at least one aesthetical and/or visible surface, is diamond tool machined, removing all or part of the thick layer.

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.

Economical method for manufacturing a timepiece display or hand-fitting component, wherein: there is chosen a first material which is easy to shape or to machine; a workpiece is made in the first material; a second material is chosen to make each aesthetical and/or visible surface of component, which is an amorphous metal alloy or has a nanocrystalline structure or includes nickel or nickel-phosphorus, or which is a pure metal or an alloy of gold and/or silver and/or copper and/or rhodium and/or titanium and/or aluminium; the workpiece is coated, at least on the surfaces intended to remain visible on the component, with a thick layer, of an initial thickness greater than 20 micrometres, of the second material; at least one aesthetical and/or visible surface, is diamond tool machined, removing all or part of the thick layer.

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 method for manufacturing a mold for manufacturing a timepiece component includes producing (E1) a recess originating from an upper surface (21) of a substrate (20), so as to form a recess (30) delimited by at least one surface (31) inclined relative to the plane (P1) in which the upper surface (21) of the substrate (20) extends, and producing (E3) at least one wall (41) of the mold comprising depositing (E31) a material on at least part of the surfaces of the substrate (20), optionally covered with a conductive layer and/or an anti-reflective layer (25), so as to form a mold at least partially delimited by at least one wall (41) of the material and by the at least one inclined surface (31) of the recess (30), and optionally by at least part of the upper surface (21) of the substrate (20).

The invention relates to a method for fabrication of a one-piece, silicon-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.

The invention relates to a method for fabrication of a one-piece, silicon-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.