Smh Management Services Ag

Rolf Widmer

Jacques Muller

Clement Meyrat

Cl&eacute;ment Meyrat

Jacques M&uuml;ller

The assembly according to the invention comprises a hard plastic watch case ( ), having on its middle part one or more sealed push buttons ( ) made in an inexpensive manner. Each push button ( ) comprises a hard plastic stem ( ), for example the same material as the case, and an elastomer flexible head ( ) which is over molded onto an external surface ( ) of the case. The case and the push buttons may be manufactured by injecting two materials in a single mold. The invention applies to electronic watches and to mechanical watches.

Method for manufacturing an assembly comprising a hard plastic watch case and at least one push button

The assembly according to the invention comprises a hard plastic watch case (2), having on its middle part one or more sealed push buttons (5) made in an inexpensive manner. Each push button (5) comprises a hard plastic stem (10), for example the same material as the case, and an elastomer flexible head (12) which is over moulded onto an external surface (15) of the case. The case and the push buttons may be manufactured by injecting two materials in a single mould. The invention applies to electronic watches and to mechanical watches.

Assembly comprising a hard plastic watch case and at least one push

The clasp wristlet is of the unfolding buckle type comprising first (4) and second (3) strips hinged to each other and comprising a catch fastening (17, 23). At one end (25) of the second strip (3) a cover (19) is mounted so as to pivot, said cover having an opening (21) in which a projecting portion (8) of said second strip is capable of being inserted. When the clasp is in a closed position, the upper face (26) of said projecting portion (8) is situated at substantially the same level as the upper face (27) of the cover (19). In this manner the thickness of the clasp is reduced. The clasp may advantageously be used for a watch wristlet.

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Bienne, Switzerland

Rolf Widmer