PUSH BUTTON FOR WATER-TIGHT WATCH CASES

摘要

Push button for water-tight watch cases comprising a locking cap (10) screwed to a head (4) of the actuation screw (3). The cap (10) has a greater axial extension with respect to the head (4) so as to extend beyond it towards the case. An abutment ring nut (14) is screwed to the cap (10) near the free edge, in an unlocking and locking configuration the ring nut (14) respectively abutting on the head (4) and on the case. First sealing means (15) are moreover provided interposed at the abutment of the ring nut (14) in the locking configuration, and second sealing means (16) are provided interposed at the connection between the ring nut (14) and the cap (10) , so that the latter is the actual push element of the button and at the same time protects its internal components, at least in the locking configuration, from the entrance of water.