| 摘要 |
PROBLEM TO BE SOLVED: To provide a timepiece with a bezel (1) interchangeable via a bayonet device. SOLUTION: The timepiece of the present invention is equipped with an annular groove (14) and at least two sinks (15) partially leave open in the annular groove (14) on the upper shoulder part (11) of intermediate division (12). The bezel (1) has at least two legs (2) arranged in a position engaged with the sinks (15). The aforementioned legs (2) have notches (4) leaving open to radial direction, respectively, above the sinks (15). For rotating operation, a locking ring (20) equipped with an operating member (21) is deployed in the annular groove (14). An edge of one side (23) of the locking ring (20) with nearly same thickness as of an aperture of the notches (4) has a concave part (24) allowing passage of the legs (2). An edge of another side (25) has a groove (26) facing to a groove (16) of the intermediate division (12). The both groves (16 and 26) contain a spring (30) of the locking ring (20). COPYRIGHT: (C)2006,JPO&NCIPI
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