Abstract:
Method for fixing a watch crystal (4) to a middle part (2) also made of plastic material, which delimits a watch case (1) with the crystal (4), wherein said watch crystal (4) comprises a top surface (6) facing the user side, and a bottom surface (8) opposite to the top surface (6), and a digital display device (12) is bonded to the bottom surface of the crystal, said method being characterized in that it consists in welding the assembly formed by the crystal (4) and the digital display device (12) to the middle part (2) by means of a laser beam.
Abstract:
The invention concerns a timepiece including a case, formed by a middle part 5 closed by a back cover and by a crystal 9, said crystal 9 being supported on a bearing surface of the middle part 5, parallel to said back cover, said case forming a housing in which an electronic module 13 is placed; said timepiece further includes a display module fixed to the crystal 9, the electronic module 13 and the display module include an identical number of connection points so that electrical connection means can connect the connection points of the electronic module 13 to the connection points of the display module in pairs.