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.
Mechanical self-winding movement. Caliber 324 S QA LU 24H/206. Day, date and month in apertures. Moon phases and 24-hour display. Sweep seconds hand. Dial: black lacquered, gold applied hour markers. Alligator strap with square scales, hand-stitched, shiny black. Prong buckle. Case: rose gold. Sapphire-crystal case back. Water resistant to 30 m. Diameter: 40 mm. Height: 11.36 mm.