5167/1A – AQUANAUT SELF-WINDING

Black embossed dial. Stainless steel. Case diameter (10-4 o’clock): 40.8 mm. Height: 8.1 mm. Screw-down crown. Water-resistant to 120 m. Sapphire crystal case back. Steel bracelet. Aquanaut fold-over clasp. Date. Sweep seconds. Gold applied numerals.
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.