Brand Audemars Piguet Model Royal Oak Selfwinding Reference number 15500ST.OO.1220ST.03 Movement Automatic Case material Steel Bracelet material Steel Year of production Unknown Condition New Scope of delivery Original box, original papers Gender Men's watch/Unisex Availability Available now Caliber Movement Automatic Movement/Caliber 4302 Power reserve 70 h Number of jewels 32 Case Case material Steel Case diameter 41 mm Try it on Thickness 10.4 mm Water resistance 5 ATM Bezel material Steel Crystal Sapphire crystal Dial Black Dial numerals No numerals Bracelet/strap Bracelet material Steel Bracelet color Steel Clasp Double-fold clasp Clasp material Steel Functions Date Other Central seconds