Eta Sa Fabriques D'ebauches

Andr&eacute; Nussbaum

Yannick Hunziker

Laurent Kaelin

Jean-Philippe Rebeaud

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

Push button device for a timepiece, in particular a chronograph

A watch case (,) including a wall (,) with an outer face and an inner face, which defines a housing intended to accommodate a watch movement (,), and control means (,) able to have at least a first and a second state, which include a moving element (,) mounted so as to slide over the outer face of said wall (,) 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 (,) further include a push button (,), mounted so as to slide in a hole (,) passing through said wall (,) and provided with an inner end (,) intended to co-operate with said movement (,) and with an outer end (,) co-operating with said moving element (,) and a body in contact with a sealing gasket (,) inserted between said push button (,) and said wall (,).

Growing community of inventors

Bienne, Switzerland

André Nussbaum

Growing community of inventors

Bienne, Switzerland

Andr&eacute; Nussbaum

André Nussbaum