A DATE WITH TIME

Landmarks in Patek Philippe’s perpetual calendar history.

1762 – Thomas Mudge invents the first ever perpetual calendar

1925 – World’s first ever perpetual calendar wristwatch (97’975) was made using the Caliber 12” originally intended for a ladies’ pendant watch. Sold in 1927 to an American, but now resides in the Patek Philippe museum in Geneva. Inspired 2017’s 5320G.

1962 – First self-winding perpetual calendar wristwatch (Ref 3448) was made. Produced until 1985.

1993 – First series-produced perpetual calendar wristwatch with retrograde date hand (Ref 5050) was created.

1864 – Patek Philippe starts building perpetual calendar pocket watches, with movement blanks made by Nicole & Audemars of the Vallée de Joux

1941 – First series-produced perpetual calendar wristwatch (Ref 1526) was made. Produced until 1952.

1981 – First Patek Philippe perpetual calendar watch with leap year indicator (Ref 3563) was created.

2012 – First women’s perpetual calendar watch (Ref 7140) was created.

1985 – Ref 3940 was made using the Calibre 240Q, one of the thinnest self-winding perpetual calendar movements in the world.

2017 – Creation of the Ref 5320G.