Audemars Piguet Royal Oak Selfwinding Ref. 15510OR.OO.1320OR.01 — 18-carat Pink Gold Specification Details Brand Audemars Piguet Collection Royal Oak Selfwinding “50th Anniversary” Reference 15510OR.OO.1320OR.01 Movement Self-winding Automatic Caliber Calibre 4302 (in modern versions) Functions Hours, Minutes, Seconds, Date Power Reserve ~70 hours Case Material 18-carat Pink Gold Case Diameter 41 mm Crystal Sapphire Dial “Grande Tapisserie” pattern (Bleu Nuit, Nuage 50) Bracelet Integrated 18-carat Pink Gold Water Resistance 50 m / 5 ATM Origin Swiss Made
