Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin Ref. 26586TI.OO.1240TI.01 The Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin ref. 26586TI.OO.1240TI.01 has a 41 mm titanium case and the self-winding Calibre 5133. - Self-winding Calibre 5133, 40 h power reserve - Functions: perpetual calendar with day, date, astronomical moon, month, leap year, night and day indication, hours and minutes - Case: titanium case, glareproofed sapphire crystal and caseback. Diameter 41 mm, thickness 6.2 mm, water resistant to 20 m - Dial: blue dial, black counters, white gold applied hour-markers and Royal Oak hands with luminescent coating - Titanium bracelet with AP folding clasp Full set. Maker: Audemars Piguet. Reference: 26586TI.OO.1240TI.01. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.