5726A – NAUTILUS SELF-WINDING

Black, gold applied hour markers with luminescent coating. Steel. Case diameter (10-4 o’clock): 40.5 mm. Height: 11.3 mm. Screw-down crown. Water-resistant to 120 m. Sapphire crystal case back. Alligator strap with rectangular scales, hand-stitched, matt black. Nautilus fold-over clasp. Annual Calendar. Day, date, month in apertures. Moon phases and 24-hour display. Sweep seconds hand. Moon phases.
Annual Calendar. 24-hour indication. Moon phases. Diameter: 33.3 mm. Thickness: 5.78 mm. Number of parts: 347. Bridges: 10. Jewels: 34. Power reserve: min. 35 hours – max. 45 hours. Winding rotor: 21K gold central rotor. Balance: Gyromax®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.