38.5mm case diameter.

Swiss. White gold case. Sapphire crystal case back. Self-winding mechanical movement. Caliber 324 S QA LU 24H/303. Annual Calendar. Moon phases and 24-hour display. Sweep seconds hand. Silvery opaline dial, gold applied hour markers. Water-resistant to 30 m. 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. 38.5mm case diameter. The watch was found to be running at the time of cataloguing. It has not been tested for timekeeping accuracy and may require adjustment.