5811/1G – NAUTILUS SELF-WINDING

Sunburst blue with black-gradient rim, horizontally embossed, gold applied hour markers with luminescent coating. White gold. Screw-down crown. Water-resistant to 120 m. Sapphire crystal case back. Diameter (10–4 o’clock): 41 mm. Height: 8.2 mm. Patented fold-over clasp with lockable adjustment system. White gold. Date in an aperture. Sweep seconds.
Date in an aperture. Sweep seconds. Diameter: 27 mm. Thickness: 3.3 mm. Number of parts: 212. Jewels: 30. Power reserve: min. 35 hours – max. 45 hours. Winding rotor: 21K gold central rotor. Balance: Gyromax®. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.