Case:
18k white gold.
Diameter (10-4 oâclock): 42.2 mm.
Thickness: 11.9 mm.
Screw-down crown.
Sapphire-crystal case back.
Water-resistant to 120 meters.
Dial:
Blue, black-gradient, embossed with Aquanaut pattern.
Gold applied numerals with luminescent coating.
Movement:
Self-winding mechanical movement.
Calibre CH 28â520 C.
Flyback chronograph.
Central chronograph hand.
60-minute counter.
Date in an aperture.
Thickness: 6.63 mm.
Parts: 308.
Bridges: 14.
Jewels: 32.
Power reserve: min. 45 hours - max. 55 hours.
Winding rotor: 21K gold central rotor.
Balance: Gyromax.
Vibrations/hour: 28 800 (4 Hz).
Balance spring: Spiromax.
Hallmark: Patek Philippe Seal.
Bracelet:
Midnight blue composite material.
Aquanaut fold-over clasp.
