The patented annual calendar was launched in 1996 and has been a success story for the past 20 years. Indicating the day of the week, the date and the month, and requiring correction only once a year, this ingenious mechanism has emerged as one of Patek Philippe’s flagship models. It offers a choice of different displays and nuances of style, always combining elegant lines, noble materials and lavish attention to finish.

Watch
Self-winding mechanical movement. 
Caliber : 26-330 S QA LU 24H/441. 
Annual Calendar. 
Day, date and month in apertures. 
Moon phases. 
24-hour indication. 
Sweep seconds.
Dial : Silvery opaline with gold applied hour markers.
Case : Rose gold. 
Case diameter: 38.5 mm. 
Height: 11.2 mm. 
Water resistant : 30 m. 
Sapphire crystal case back.
Strap : Shiny chocolate brown alligator. 
Fold-over clasp.
Diameter: 33.3 mm. 
Thickness: 5.8 mm. 
Number of parts: 339. 
Winding rotor: 21K gold central rotor. 
Frequency: 28,800 semi-oscillations/hour (4 Hz).
Power reserve: min. 35 hours - max. 45 hours.