公开(公告)号：US12253829B2

公开(公告)日：2025-03-18

申请号：US17943756

申请日：2022-09-13

Applicant: The Swatch Group Research and Development Ltd

Inventor： Joël Allimann ,  Simon Garcin

IPC: G04B37/00

Abstract: A watch case (10) including a back (30) driven into a middle (20) by a joint (40), and including a body (31) from which radially extends a lip (32), the body (31) including an axial annular shoulder (310) and the lip (32) including a radial annular shoulder (320). The middle (20) has an axial opening (21), an axial annular shoulder (200), and a radial annular shoulder (201) resting against the radial annular shoulder of the lip, the joint being interposed between the axial annular shoulders. The axial annular shoulders have peripheral profiles of complementary shapes, substantially circular, including one and the other, a first circular-arc-shaped portion having a first radius (R1, R2), and a second circular-arc-shaped portion to which is connected the first portion, having a second radius (r1, r2) the value of which is lower than that of the first radius (R1, R2).

公开(公告)号：US11860579B2

公开(公告)日：2024-01-02

申请号：US17375420

申请日：2021-07-14

Applicant: The Swatch Group Research and Development Ltd

Inventor： Joël Allimann ,  Jean-Claude Martin ,  Simon Garcin

IPC: G04B37/11 ,  G04B37/00

CPC classification number: G04B37/113 ,  G04B37/0008 ,  G04B37/11

Abstract: A device is for fastening a back on a middle of a watch. The back includes a cover arranged to form a bearing surface with the middle and a body arranged to rest in the middle. The device includes a ring disposed between the back and the middle, the ring being arranged to ensure the water resistance and indexing of the back. The ring includes an upper part ensuring the water resistance and a median part including positioning to ensure precise placement of the back.