Roman numerals with 11 diamonds set on VI
18K Everose gold screw-down crown
crown set with 13 diamonds (~0
blue ceramic screw-locked crown and push pieces
grey lacquered inner bezel
Audemars Piguet Royal Oak Perpetual Calendar Watch - 26574BA.OO.1220BA.01 steel Roman numerals with 11 diamonds41 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