glareproof sapphire crystal back
blue counters
41 mm 18K white gold case
Calibre 3120 selfwinding movement with dive-time measurement
caliber 52850 pellaton automatic winding movement with power reserve display
Audemars Piguet Royal Oak Chronograph Watch - 26331ST.OO.1220ST.03 Blue glareproof sapphire crystal back41mm stainless steel case, 11mm thick, screw locked crown, glareproofed sapphire crystal, silver toned dial with Grande Tapisserie" pattern, black counters and extern zone, white gold applied hour markers and Royal Oak hands with luminescent coating, Calibre 2385 self winding movement with chronograph, hours, minutes, small seconds, date, approximately 40 hours of power reserve, stainless steel bracelet, AP folding buckle. Water resistant to 50