History of Patek Philippe's perpetual calendars

The perpetual calendar is one of the most important grand complications and specially significant for Patek Philippe. Let acclaimed watch connoisseur Nick Foulkes tell you the story about these remarkable timepieces. It recalls the world's first wristwatch with a perpetual calendar - presented in 1925 - and a few legendary movements as well as different dial displays up to the latest references. Foulkes is superbly qualified to characterize these calendar watches that automatically recognize the durations of each month as well as leap years.