The Nautilus self-winding flyback chronograph comes in a new white gold version with an opaline blue-gray dial. This refined shade is echoed on the blue-gray denim-patterned calfskin strap with white gold Nautilus fold-over clasp. The watch is also delivered with an additional blue-gray composite material strap with fabric pattern. The case and bezel are distinguished by contrasting polished and satin finishes. Chronograph indications are grouped in an original and legible large 6 o’clock monocounter with three concentric scales. The central chronograph seconds hand can also be used as a running seconds display.

Watch
Self-winding mechanical movement. 
Caliber : CH 28-520 C/522. 
Flyback chronograph. 
Central chronograph hand. 
60-minute and 12-hour monocounter. 
Date in an aperture.
Dial : Opaline blue-gray, horizontally embossed, white gold applied hour markers with white luminescent coating.
Case : White gold. 
Diameter (10 - 4 o’clock): 40.5 mm. 
Thickness: 12.2 mm. 
Water resistant : 30 m. 
Screw-down crown. 
Sapphire crystal case back.
Strap : Calfskin, hand-stitched, denim pattern, blue-gray (originally fitted). 
Composite material, fabric pattern, blue-gray (additional strap). 
Nautilus fold-over clasp in white gold.
Diameter: 30 mm. 
Thickness: 6.63 mm. 
Number of parts: 327. 
Bridges: 13. 
Jewels: 35. 
Power reserve: min. 45 hours - max. 55 hours. 
Winding rotor: 21K gold central rotor. 
Balance: Gyromax®. 
Frequency: 28,800 semi-oscillations/hour (4 Hz). 
Balance spring: Spiromax®. 
Hallmark: Patek Philippe Seal