Abstract: A method for decorating a surface of a mechanical part including: taking the mechanical part to be decorated, on which a decoration element is sought to be produced; depositing on the surface a masking layer having a thickness that is at least equal to the thickness of the decoration element to be produced; making, in the masking layer, at least one cavity that coincides with the location on the surface to be decorated, the cavity having a contour that corresponds to the contour of the decoration element and defining a volume; depositing a bonding layer made of an electrically-conductive material on top of the masking layer and on the surface, in the locations of the cavity, to facilitate the bonding of the decoration element; filling the volume delimited by the masking layer and the surface with a filling material in which the decoration element; and removing the masking layer.

Abstract: A method for manufacturing appliques on a dial for a timepiece.

Abstract: A method for plasma treating a target surface of a part, including: obtaining the target surface on the part; placing the part in a chamber of a plasma generator; evacuating the chamber to a pressure of between 10-6 and 10 mbar; injecting a suitable gas into the chamber until a pressure in the chamber of between 10-4 and 102 mbar is reached; generating an electric current discharge within the chamber, via an electric generator, in order to generate a plasma; exposing the target surface of the part to the plasma for a predefined period of time depending on the power of the electric current discharge, on the gas injected into the chamber and on the material of the target surface, so as to deteriorate the surface condition of the target surface in order to increase the roughness thereof to make the target surface mat or more mat.

Abstract: A deposition method for forming a three-dimensional object on a watch dial and/or a watch bezel that includes at least supplying at least one support and depositing an adhesion layer, an outline of the object is delimited in order to enable a cavity to be formed by the deposition of a plurality of polymer layers, such that said object is formed by filling said cavity by the deposition of at least one finish layer.

Abstract: A method for manufacturing appliques on a dial for a timepiece.

Abstract: A system for producing at least one three-dimensional element on a visible face of an external part element of a timepiece implementing this process, the system including a mould formed by the reversible assembly of a first part and a second part configured to receive a support plate of the external part element, the mould including at least one cavity formed by associating the first part including at least one impression with the visible face of the external part element, each cavity helping produce a blank of the three-dimensional element from an over-moulding by injecting injectable material onto the visible face, and a device for applying a coating onto the blank over-moulded on the visible face of the external part element helping finalise this blank of the three-dimensional element.

Abstract: A process for manufacturing a watch dial including at least one pattern on a visible face of the dial, the process including: a step of designing a support plate including a dial blank, this step including producing several through holes in the thickness of the body of a support plate, the holes delimiting in such a plate the edge of the dial blank, and a step of producing at least one pattern on a visible face of the dial blank during which step the following is performed: an arrangement of this support plate including the external part element in a mould, and a construction of a blank of each pattern on the visible face of the dial blank, as well as a finalisation of the blank of the pattern.

Abstract: A method for fabricating an external element or a timepiece dial from non-conductive material, by performing or repeating a basic cycle of making a base from a non-conductive, or ceramic, or glass. or sapphire substrate; dry coating the base with a first sacrificial protective metal layer; etching a decoration with an ultrashort pulse laser to a depth at least equal to the local thickness of the first layer; dry coating the decoration and the remaining part of the first layer with a second metal and/or coloured decorative treatment layer; chemically removing each first layer; and before or after chemical removal of each first layer, mechanically levelling on the upper level of the base the compound thus formed.

Abstract: A method for decorating a surface of a mechanical part including: taking the mechanical part to be decorated, on which a decoration element is sought to be produced; depositing on the surface a masking layer having a thickness that is at least equal to the thickness of the decoration element to be produced; making, in the masking layer, at least one cavity that coincides with the location on the surface to be decorated, the cavity having a contour that corresponds to the contour of the decoration element and defining a volume; depositing a bonding layer made of an electrically-conductive material on top of the masking layer and on the surface, in the locations of the cavity, to facilitate the bonding of the decoration element; filling the volume delimited by the masking layer and the surface with a filling material in which the decoration element; and removing the masking layer.

Abstract: A method for manufacturing a one-piece timepiece dial assembly made of light alloy includes making, in a first assembled state, a dial including a flange whose material is a first light alloy, including opposite to the first side of a display area visible to a user, at least one foot for attachment to the dial. The flange includes at least one receiving area complementary to an end area of at least one foot which is a weldable foot that can be welded or brazed to the flange at the interface between the receiving area and the end area. The weldable foot is made of material that is the first light alloy or a second light alloy that can be welded or brazed to the first light alloy. The method further includes irreversibly assembling by welding or brazing at least one weldable foot to the flange.

Abstract: A method for fabricating an external element or a timepiece dial from non-conductive material, by performing or repeating a basic cycle of making a base from a non-conductive, or ceramic, or glass. or sapphire substrate; dry coating the base with a first sacrificial protective metal layer; etching a decoration with an ultrashort pulse laser to a depth at least equal to the local thickness of the first layer; dry coating the decoration and the remaining part of the first layer with a second metal and/or coloured decorative treatment layer; chemically removing each first layer; and before or after chemical removal of each first layer, mechanically levelling on the upper level of the base the compound thus formed.

Abstract: The invention relates to an enamelled part (3, 11, 21) for a dial comprising a ceramic substrate (31) coated with a first enamel layer (4?, 12, 24, 33) to improve the appearance of said part. According to the invention, the part includes at least one other enamel layer (6?, 8?, 9, 14, 16, 25, 35, 37, 39, 41, 43, 45) partially covering the first enamel layer (4?, 12, 24, 33) so as to form a decoration with a similar improved appearance. The invention concerns the field of timepieces, jewellery and gems.

Abstract: The invention relates to an enamelled part (3, 11, 21) for a dial comprising a ceramic substrate (31) coated with a first enamel layer (4?, 12, 24, 33) to improve the appearance of said part. According to the invention, the part includes at least one other enamel layer (6?, 8?, 9, 14, 16, 25, 35, 37, 39, 41, 43, 45) partially covering the first enamel layer (4?, 12, 24, 33) so as to form a decoration with a similar improved appearance. The invention concerns the field of timepieces, jewellery and gems.