It pays tribute to the 20th anniversary of Patek Philippe’s patented Annual Calendar: the men’s Ref. 5396, with an inline double aperture for the day and month as well as a date at 6 o’clock, is now being presented in two new versions with white- and rose-gold cases. Their hallmarks: a charcoal gray sunburst (white gold) or silvery opaline (rose gold) dial with large applied Breguet numerals in gold.
Annual Calendar. Moon phases. Day, date and month in apertures. Moon phases and 24-hour display. Sweep seconds hand. Dial: silvery opaline with gold applied hour markers. Fold-over clasp. Case: rose gold. Sapphire-crystal case back. Water resistant to 30 m. Case diameter: 38.5 mm. Height: 11.2 mm.
Annual Calendar. 24-hour indication. Moon phases. Diameter: 33.3 mm. Height: 5.78 mm. Parts: 347. Bridges: 10. Jewels: 34. Power reserve: Min. 35 hours - max. 45 hours. Central rotor in 21K gold, unidirectional winding. Balance: Gyromax®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.