| 摘要 |
PURPOSE:To reduce the machining cost of components while ensuring the connecting quality by a structure wherein the compositional member of movement has a part abutting on the bottom face of a sensor and the compositional members of one movement shares a shaft with the sensor. CONSTITUTION:A sensor 1 is mounted onto the case 2 of a wristwatch from below while collapsing a waterproofing packing 10 and the sensor 1 is positioned radially in that state. A rotary board 6 is then mounted onto the case 2 so that the sensor is received at the bottom face thereof by the sensor receiving face 5a of a panel frame 5 thus preventing coming-off of the sensor 1. The sensor receiving part 5b spreads the panel frame 5 in the vicinity of the sensor up to the rear cover side thus reducing the gap (a) significantly with respect to the rear cover. Sine the sensor receiving part 5b abuts on the rear cover, even if the sensor is subjected to external pressure, the rotary board 6 is not subjected to a pressure more than necessary. |
