Audemars Piguet Royal Oak Perpetual Calendar “John Mayer” Ref. 26574BC.OO.1220BC.02 The Audemars Piguet Royal Oak Perpetual Calendar “John Mayer” ref. 26574BC.OO.1220BC.02 has a 41 mm 18-carat white gold case and the self-winding Calibre 5134. - Self-winding Calibre 5134, 40 h power reserve - Functions: perpetual calendar with week indication, day, date, astronomical moon, month, leap year, hours and minutes - Case: 18-carat white gold case, glareproofed sapphire crystal and caseback. Diameter 41 mm, thickness 9.5 mm, water resistant to 20 m - Dial: blue “Crystal Sky” finished dial, white gold applied hour-markers and Royal Oak hands with luminescent coating - 18-carat white gold bracelet with AP folding clasp Full set. Maker: Audemars Piguet. Reference: 26574BC.OO.1220BC.02. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.