Abstract: A method for manufacturing a part (1) made of an electrically non-conductive material, the part (1) including at least one relief decoration (2a) of a noble metal or its alloy, the method including the steps of: depositing a first adhesion layer (4a) and a second adhesion layer (4b) on the surface (2) of an ébauche (3); depositing by electroforming a layer of the noble metal or of its alloy (5) on the second adhesion layer (4b); laser cutting the layer of noble metal or of its alloy (5) to outline the relief decoration (2a); depositing a protective layer (7) around the relief decoration (2a); removing the layer of noble metal or of its alloy (5) from portions (2c) not covered by the protective layer (7); removing the protective layer (7); and removing the first adhesion layer (4a) and optionally the second adhesion layer (4b) on the portions (2c).

Abstract: A bracelet including a plurality of articulated units (10) formed by two centre links (13) rigidly connected to each other by first and second side links (11, 12) between which the centre links (13) are sandwiched, the first side link (11) including two pins (111), each engaged in a hole (131) extending through one of the centre links (13), each pin (111) being attached to a socket (121) provided on the second side link (12), each socket (121) including two separate attachment zones (123), via each of which the pin (111) is driven into the socket (121).

Abstract: A watertight watch case (1) including a middle (2), a back (3) and a sealing joint (4) disposed between the middle (2) and the back (3), the middle (2) and the back (3) being made of a ceramic material having a hardness greater than or equal to 1600 HV10, the middle (2) including a lower face (2a) and the back (3) including an upper face (3a), the lower and upper faces (2a, 3a) facing each other and serving as bearing surfaces for the sealing joint (4), the watertight watch case (1) wherein the lower and upper faces (2a, 3a) are formed by a set of concentric scratches (5). Also, a method for finishing the watertight watch case, which method comprises a satin-finishing step to obtain the set of concentric scratches (5).

Abstract: A method for the three-dimensional decoration of a substrate (11) to produce an external part (10) including the steps of: depositing at least one enamel carrier layer (12) on a decorative area of an external surface (110) of a ceramic substrate (11), the decorative area being intended to receive a decorative element (13); firing the substrate (11) comprising the carrier layer (12) so as to melt the latter; depositing a ceramic and/or metal decorative element (13) in solid form on the carrier layer (12); and sealing the decorative element (13) to the substrate (11) by firing to form an external part (10).

Abstract: The invention relates to a spring ring 14 for snap fitting a rotating bezel, the spring ring extending in a plane and being intended to be received in an annular groove arranged on a cylindrical outer rim of a watch case middle part made of ceramic. According to the invention, the spring ring comprises on the inner rim thereof at least one lug inclined in relation to the plane of the spring ring, said lug being intended to engage with a cylindrical outer surface of the watch case middle part, so as to index the position of the spring ring in relation to the middle part.

Abstract: The invention relates to a spring ring 14 for snap fitting a rotating bezel, the spring ring extending in a plane and being intended to be received in an annular groove arranged on a cylindrical outer rim of a watch case middle part made of ceramic. According to the invention, the spring ring comprises on the inner rim thereof at least one lug inclined in relation to the plane of the spring ring, said lug being intended to engage with a cylindrical outer surface of the watch case middle part, so as to index the position of the spring ring in relation to the middle part.