Abstract: The invention relates to an accessory (1) for a wristwatch, comprising a housing configured to receive an electronic card in a removable manner.

Abstract: The watch has a housing, composed of a metal center part (1) having a molded-on glass collar (1a), a watch glass (2), over whose rim (2a) the glass collar engages, and a metal base (3) fixed to the center part by screws (8). A movement retaining ring (6) made from plastic is inserted in the center part (1). A first seal (4) lies between the movement retaining ring (6) and the rim (2a) of the watch glass (2) and a second seal (5) between the movement retaining ring (6) and the base (3). The screws (8), which pass through apertures (9) in the edge region (3a) of the base (3) and are screwed into axial threaded openings (10) in the center part (1) not only serve to secure the base but also simultaneously compress both seals (4, 5) when tightened.

Abstract: A wrist watch case comprising a crystal bezel provided, on the depending walls covering the strap fixing sides, with diametrally opposed recesses. A first recess is adapted to receive a projection formed on the case periphery and a releasable locking member in the form of a U-shaped clamp is located in the other recess, the side legs of this clamp being adapted to be inserted into corresponding holes formed in the case periphery. The projection and the locking member, in the assembled watch condition, bear on the corresponding wall sections of the relevant depending crystal bezel walls which limit said recesses on their lower sides, thus effecting a perfect compression of the gasket clamped between the crystal bezel and the upper edge of the middle of the watch case and ensuring a reliable watertightness even in case of large tolerances of the cooperating parts. The releasable locking member may also consist of a small plate or a spring blade.

Abstract: The watch has at the top edge of its case, on opposite sides, flanges which project radially inwards and the underside of which is at a distance from the watch-glass edge. To close the watch and press the watch glass against a packing resting on an inner case shoulder, there are two shackle-shaped clamping slides which each have two legs and which can be pushed from the two opposite flange-free case sides into the slits located between each of the flanges and the watch-glass edge. When the clamping slides are pushed in, the packing is compressed strongly enough by the watch glass pressing against it, in order to achieve perfect water-tightness. The invention relates in particular to a watch which has a molded case produced from plastic and or rectangular or even oval shape.