Brand Audemars Piguet Model Royal Oak Perpetual Calendar Reference number 26585CE.OO.1225CE.01 Movement Automatic Case material Ceramic Bracelet material Ceramic Condition New (Brand new, without any signs of wear) Scope of delivery Original box, original papers Gender Men's watch/Unisex Caliber Movement Automatic Power reserve 40 h Number of jewels 38 Case Case material Ceramic Case diameter 41 mm Try it on Thickness 9.9 mm Water resistance 2 ATM Bezel material Ceramic Crystal Sapphire crystal Dial Transparent Bracelet/strap Bracelet material Ceramic Bracelet color Black Clasp Double-fold clasp Clasp material Titanium Functions Moon phase, Perpetual calendar Other Central seconds