CH566042ACH66973ACH66973ACH566042ACH 566042 ACH566042 ACH 566042ACH 66973 ACH66973 ACH 66973ACH 66973 ACH66973 ACH 66973ACH 566042 ACH566042 ACH 566042A
Authority
CH
Switzerland
Application number
CH66973A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to CH66973ApriorityCriticalpatent/CH566042A/xx
Priority to CH66973Dprioritypatent/CH66973A4/xx
Priority to DE19732361685prioritypatent/DE2361685C3/de
Priority to US05/423,186prioritypatent/US3969888A/en
Publication of CH566042ApublicationCriticalpatent/CH566042A/xx
G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B19/00—Indicating the time by visual means
G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
G04B19/253—Driving or releasing mechanisms
G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
G04B19/25366—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement manually corrected at the end of months having less than 31 days