PATEK PHILIPPE NAUTILUS REF. 5726A-001 CAL. 324 S QA LU 24H/303 ANNUAL CALENDAR, MOON PHASES

5726A - NAUTILUS
SELF-WINDING
With the rounded octagonal shape of its bezel, the ingenious porthole construction of its case, and its horizontally embossed dial, the nautilus has epitomized the elegant sports watch since 1976. Forty years later, it comprises a splendid collection of models for men and women. In steel, rose gold, white gold or two-tone combinations they accompany the most active lifestyles with incomparable class. Mechanical self-winding movement. Caliber 324 S QA LU 24H/303. Annual Calendar. Moon phases. Day, date, month in apertures. Moon phases and 24-hour display. Sweep seconds hand. Dial: black, gold applied hour markers with luminescent coating. Strap: alligator with rectangular scales, hand-stitched, matt black. Fold-over clasp. Case: steel. Screw-down crown. Sapphire-crystal case back. Water resistant to 120 m. Case diameter (10-4 o'clock): 40.5 mm. Height: 11.3 mm.

CALIBER
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.