Audemars Piguet Royal Oak Perpetual Calendar Watch - 26574BA.OO.1220BA.01 steel unidirectional rotatable 18K yellow gold

unidirectional rotatable 18K yellow gold bezel with blue Cerachrom insert and gold coated numerals and graduations

blue ombre´ dial

bezel set with diamonds

18K Everose gold screw-down crown

crown set with 14 diamonds

Audemars Piguet Royal Oak Perpetual Calendar Watch - 26574BA.OO.1220BA.01 steel unidirectional rotatable 18K yellow gold41 mm 18K yellow gold case, 9. 5 mm 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