Lot 112

Patek Philippe

Jahreskalender

A rare Geneva wristwatch with indications of day, date, month and 24 hours

Sold

Reference 5035 - "Annual Calendar" was first produced in 1996; production has now ceased. Patek Philippe obtained Swiss Patent No. 685585 G for this milestone date mechanism on March 1, 1996; the patent described an annual calendar for an automatic wristwatch. The varying lengths of each month from March 1 throughout February of the following year are automatically taken into account by this sophisticated mechanism - making this the first self-winding wristwatch where the calendar only needs to be adjusted once a year.