A water-resistant timepiece of the type including a crystal, a timepiece dial and movement assembly, and a long-life energy cell, which comprises a continuous case of plastic having: a first outer peripheral member adapted to receive said dial and movement assembly and the long-life energy cell, and further adapted to receive the crystal to form a water-resistant seal therewith; a thin substantially flat case back wall integral with the peripheral member to form an annular edge; and a peripheral groove located in the bottom of the peripheral member. A case back blank of substantially uniform thickness, having a substantially flat central portion and an integral peripheral side wall, and preferably made of stainless steel, cooperates with the peripheral groove of the case to integrally attach the case back blank to the case to complete a thin timepiece having improved water resistance, high mechanical and structural integrity, and an aesthetic appearance.
Timepiece comprising a caseband (2) capable of being elastically deformed whose internal wall (20) has a first protruding part (23, 24) and a second protruding part (28) forming a stop for the movement (50) associated with the dial (52). When the movement is inserted into the caseband, the first protruding part is passed via the rim (56) of movement by the application of pressure (58) on the movement resulting in a separating force of the case band thanks to the specific profile of the first protruding part. Once in place, the movement surmounted by dial is held in a fixed position in the caseband by means of the first and second protruding parts.
A wrist mountable electronic apparatus has a strap member having a pair of strap portions. Each of the strap portions has an end disposed in spaced-apart relation to the other so that inner peripheral surfaces of the ends of the strap portions form a hole having a first open end and a second open end opposite the first open end. Each of the inner peripheral surfaces of the strap portions has a stepped portion. A portable electronic apparatus is disposed in the hole of the strap member. A glass member is supported on the stepped portion of each of the strap portions for closing the first open end of the hole. A connecting structure free of adhesive connects the glass member to each of the strap portions. A waterproof member is disposed directly between only the glass member and the strap member for providing a watertight seal therebetween. A rear cover covers the second open end of the hole.
