Abstract: A device for attachment of a timepiece movement to a watch case, including a peripheral attachment element of the movement positioned in abutment on an axial bearing surface of the case. The device includes thermoformed studs integral with the case having a mushroom shape at an end thereof providing an axial retaining surface acting as a rivet to hold the peripheral attachment element of the movement against the axial bearing surface of the case.

Abstract: A watch and a method of ultrasonic welding a bezel to the watch at a middle part. The watch includes: a middle part which, with a crystal, delimits a watch case, the crystal being bonded to a shoulder arranged in the watch middle part; and a bezel ultrasonically welded both to the crystal and to the watch middle part.

Abstract: A device for attachment of a timepiece movement to a watch case, including a peripheral attachment element of the movement positioned in abutment on an axial bearing surface of the case. The device includes thermoformed studs integral with the case having a mushroom shape at an end thereof providing an axial retaining surface acting as a rivet to hold the peripheral attachment element of the movement against the axial bearing surface of the case.

Abstract: A wristwatch with capacitive touch zones including a case made of a non electrically conductive material, the case including a housing in which a battery is housed and which is closed by an electrically conductive battery cover. The electrically conductive battery cover is mounted on the watch case with interposition of an electrically conductive sealing gasket between the battery cover and the battery.

Abstract: A lighting system for an information display device, the lighting system including a light guide including at least one area into which the light produced by a light source is injected, the light guide also being used as a guide element for at least one electrical connector for the electrical connection between the information display device and an electronic control circuit of the information display device, wherein the light guide is coated, in the light injection area, with a layer of electrically non-conductive material which absorbs light.

Abstract: Method of ultrasonic welding a watch crystal, the watch including a middle part which, with the crystal, delimits a watch case, the crystal including a top face oriented towards the user and an opposite bottom face oriented towards the watch cases, a digital display device being fixed to the bottom face of the crystal, a printed circuit board being disposed inside the watch case, underneath and remote from the digital display device, the digital display device being electrically connected to the printed circuit board by means of a zebra electrical connector, wherein, as the crystal is abutting on a shoulder arranged in the middle part, the ultrasounds are directed onto the shoulder to melt the shoulder and to lower the level of the crystal in the direction of the printed circuit board, so that the zebra connector is compressed between the digital display device and the printed circuit board.

Abstract: A lighting system for an information display device, the lighting system including a light guide including at least one area into which the light produced by a light source is injected, the light guide also being used as a guide element for at least one electrical connector for the electrical connection between the information display device and an electronic control circuit of the information display device, wherein the light guide is coated, in the light injection area, with a layer of electrically non-conductive material which absorbs light.

Abstract: Watch comprising a middle part (2), which, with a crystal (4), delimits a watch case (1), the crystal (4) being bonded to a shoulder (10) arranged in the watch middle part (2), the watch being characterized in that it comprises a bezel (14) ultrasonic welded both to the crystal (4) and to the watch middle part (2). The invention also concerns method of ultrasonic welding a bezel (14) to the watch middle part (2).

Abstract: Method of ultrasonic welding a watch crystal (4), wherein the watch comprises a middle part (2) which, with the crystal (4), delimits a watch case (1), the crystal comprising a top face oriented towards the user and an opposite bottom face oriented towards the watch case, a digital display device (12) being fixed to the bottom face (10) of the crystal (4), a printed circuit board (26) being disposed inside the watch case (1), underneath and remote from the digital display device (12), the digital display device (12) being electrically connected to the printed circuit board (26) by means of a zebra-type electrical connector (30), the method being characterized in that as the crystal (4) is abutting on a shoulder (6) arranged in the middle part (2), the ultrasounds are directed onto the shoulder (6) to melt said shoulder (6) and to lower the level of the crystal (4) in the direction of the printed circuit board (26), so that the zebra connector (30) is compressed between the digital display device (12) and the

Abstract: A wristwatch with capacitive touch zones including a case made of a non electrically conductive material, the case including a housing in which a battery is housed and which is closed by an electrically conductive battery cover. The electrically conductive battery cover is mounted on the watch case with interposition of an electrically conductive sealing gasket between the battery cover and the battery.

Abstract: A timepiece which, in addition to a crystal, includes the following external elements: a back cover, a middle part, a dial, a bezel, and two wristband strands. At least one of these external elements is at least partially transparent or translucent. The back cover, the middle part, and the bezel define an internal volume of the watch case that houses a timepiece movement. At least one light source is housed within the internal volume and produces a light that passes through the transparent or translucent part of the external element.

Abstract: A timepiece which, in addition to a crystal, includes the following external elements: a back cover, a middle part, a dial, a bezel, and two wristband strands. At least one of these external elements is at least partially transparent or translucent. The back cover, the middle part, and the bezel define an internal volume of the watch case that houses a timepiece movement. At least one light source is housed within the internal volume and produces a light that passes through the transparent or translucent part of the external element.