Audemars Piguet Royal Oak Perpetual Calendar Watch-Blue Dial 41mm-26574BA.OO.1220BA.01

41mm 18K yellow gold case, 9.5mm thick, glareproofed sapphire crystal back, screw-locked crown, glareproofed sapphire crystal, blue dial with Grande Tapisserie?? pattern, yellow gold applied hour-markers and Royal Oak hands with luminescent coating, blue inner bezel, Manufacture 5134 selfwinding movement with perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes, approximately 40 hours of power reserve, 18K yellow gold bracelet, AP folding buckle. Water resistant to 20 meters.