| 摘要 |
<p>A circular case battery hole (10) is formed in the case back (3) right below a battery accommodation hole (7h), and in a portion of the outer surface around the battery hole is provided a battery cover detachment recess portion (3c). A battery cover (13) is formed of a disklike elastic sealing member (11) having a large-diameter portion (11b) at its watch case (1) interior side and a small-diameter portion (11s) at its outer side, and a disklike hard member (12) made of a metal, a plastic, or the like joined to outer side of the elastic sealing member (11). The battery cover (13) is attached to the case battery hole portion (10) in such a manner that the small-diameter portion (11s) of the elastic sealing member (11) has a horizontal fitting margin relative to the case battery hole. In the battery cover (13) of this embodiment, the elastic sealing member (11) has a fitting recess portion (11c) at its outer side while the hard member (12) has a fitting projection portion (12c) at its internal side, and the elastic sealing member and the hard member are joined by projection-recess fitting. <IMAGE></p> |
