The very first chronograph in the Aquanaut collection. The sporty and very contemporary Aquanaut collection welcomes its first chronograph – a complication that perfectly matches the character of this youthful and dynamic timepiece line. Patek Philippe endowed this companion for active people with a self-winding flyback chronograph movement that combines tradition and innovation. It features a classic column wheel as well as a modern vertical disk clutch that prevents a rebound of the hand in either direction when the chronograph is started. Because this clutch is virtually friction-free, the chronograph hand can also be used as a continuously running seconds hand.
Chronograph. 60-minute counter. Sweep seconds hand (chronograph hand). Dial: Black embossed, gold applied numerals with luminescent coating. Strap: Composite material, black (originally fitted). Composite material, orange (additional strap). Aquanaut fold-over clasp. Steel. Screw-down crown. Sapphire-crystal case back. Water resistant to 120 m. Diameter (10-4 o’clock): 42.2 mm. Height: 11.9 mm.
Caliber CH 28-520 C Self-winding
Chronograph with 60-minute counter. Date. Diameter: 30 mm. Height: 6.63 mm. Parts: 308. Bridges: 14. Jewels: 32. Power reserve: Min. 45 hours – max. 55 hours. Central rotor in 21K gold, unidirectional winding. Balance: Gyromax. Vibrations/hour: 28 800 (4 Hz). Balance spring: Spiromax. Hallmark: Patek Philippe Seal.