Abstract: The problem is to provide a battery lid structure for a timepiece case, which does not require complicate machining, such as for slant surfaces and stoppers, in an inner surface of a back lid or case bottom surface, and can reduce a thickness. The back lid has, at an immediately underneath the battery accommodating hole, a different-shaped battery hole having a pair of larger-diameter arcs and a pair of smaller-diameter arcs in an alternate fashion. A battery lid is fitted in the battery hole in a manner described later.

Abstract: The problem is to provide a battery lid structure for a timepiece case, which does not require complicate machining, such as for slant surfaces and stoppers, in an inner surface of a back lid or case bottom surface, and can reduce a thickness. The back lid has, at an immediately underneath the battery accommodating hole, a different-shaped battery hole having a pair of larger-diameter arcs and a pair of smaller-diameter arcs in an alternate fashion. A battery lid is fitted in the battery hole in a manner described later.

Abstract: A band base of the wrist band is formed with a cavity for receiving therein a switch member. The band base is formed of elastomer or thermoplastic flexible material and is formed or molded integrally with an internal frame of the watch casing. A band cover is disposed on the band base to cover the cavity thereof. The band cover is molded around its periphery with material comparable to that of the band base by means of a metal mold which has a flow pass covering borders between the band cover and the band base. Further, the internal frame connected to the band base is provided with a holding member for holding and fixing the switch member without engagement to the band base itself such that the switch member can be inserted into the cavity of the band base.

Abstract: An integral watch band is comprised of a plurality of beam portions adjacent to one another in the lengthwise direction of the band. Each beam portion has two major faces opposed to each other and two side faces disposed between the two major faces in opposed relation to each other in the widthwise direction of the band so as to define between a pair of adjacent beam portions a corresponding pair of side faces adjacent to each other in the lengthwise direction. Each pair of adjacent side faces has a pair of arm portions protruding outwardly from the respective adjacent side faces in the widthwise direction. A plurality of elastic bridge portions are integrated with the beam portions through the arm portions to form the integral band. Each bridge portion is elastically connected between each pair of arm portions to enable the integral band to expand and contract in the lengthwise direction.