Abstract: A timepiece including a case that houses a main plate of a movement surmounted by a dial, and a support including fastening studs arranged on an upper face of the main plate for mounting the dial. The dial and the support include an angular locking mechanism for locking an angular position of the dial on the support, and the dial is assembled to the main plate by at least one flexible fastening element integral with the dial and arranged in the plane of the dial.

Abstract: The invention concerns a push button device for a timepiece, in particular a chronograph, including a pusher head (2) associated with a pusher stem (4) arranged so as to slide in a recess (6) inside which it moves axially from a rest position against the resilient return force of a spring (12) when the pusher head (2) is pushed in, characterised in that the pusher stem (4) is also able to move axially from its rest position to a pulled out position when the pusher head (2) is pulled out.

Abstract: A watch case (1) including a wall (6) with an outer face and an inner face, which defines a housing intended to accommodate a watch movement (7), and control means (4) able to have at least a first and a second state, which include a moving element (8) mounted so as to slide over the outer face of said wall (6) and able to occupy at least two positions, each position corresponding to one of said states. This watch case is characterised in that said control means (4) further include a push button (9), mounted so as to slide in a hole (6a) passing through said wall (6) and provided with an inner end (9a) intended to co-operate with said movement (7) and with an outer end (9b) co-operating with said moving element (8) and a body in contact with a sealing gasket (10) inserted between said push button (9) and said wall (6).