The 18-carat pink gold 41 mm case is enhanced by a black “Grande Tapisserie” dial and a matching alligator strap. This Selfwinding Chronograph also encompasses the latest Royal Oak design evolution. Case: 18-carat pink gold case, glareproofed sapphire crystal and caseback, screw-locked crown. Size: 41 mm Thickness: 12.4 mm Water Resistance: 50 m Dial: Black dial with “Grande Tapisserie” pattern, black counters, pink gold applied hour-markers and Royal Oak hands with luminescent coating. Bracelet: Black alligator strap with 18-carat pink gold AP folding clasp. Calibre 4401: Functions: Flyback chronograph, hours, minutes, small seconds and date. Number of jewels: 40 Power reserve: 70 h Number of parts: 381 Frequency: 4 hz 28800 vph