Manual date advance mechanism for a watch

A lever actuated by a manual pushbutton for advancing the date ring of a calendar watch so as to correct for months having less than 31 days. A special date change lever incorporates a tab actuated by the pushbutton, a first integral spring portion for biasing the lever to a normal rest position, a...

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Bibliographische Detailangaben
Hauptverfasser:	WUTHRICH, PAUL, MASCIA, FRANK
Format:	Patent
Sprache:	eng
Schlagworte:	HOROLOGY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Beschreibung
Zusammenfassung:	A lever actuated by a manual pushbutton for advancing the date ring of a calendar watch so as to correct for months having less than 31 days. A special date change lever incorporates a tab actuated by the pushbutton, a first integral spring portion for biasing the lever to a normal rest position, a second integral spring portion for biasing an arm with a tab against the teeth of the date ring for advancing the date ring.