Audemars Piguet Royal Oak Selfwinding "50th Anniversary" Ref. 15510ST.OO.1320ST.05 The Audemars Piguet Royal Oak Selfwinding "50th Anniversary" ref. 15510ST.OO.1320ST.05 has a 41 mm stainless steel case and the self-winding Calibre 4302. - Self-winding Calibre 4302, 70 h power reserve - Functions: hours, minutes, centre seconds and date - Case: stainless steel case, glareproofed sapphire crystal and caseback, screw-locked crown. Diameter 41 mm, thickness 10.5 mm, water resistant to 50 m - Dial: grey dial with “Grande Tapisserie” pattern, white gold applied hour-markers and Royal Oak hands with luminescent coating - Stainless steel bracelet with AP folding clasp Full set. Maker: Audemars Piguet. Reference: 15510ST.OO.1320ST.05. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.