Case material: Steel; Charge: Automatic; Conditions: New Presentation condition : With dealer guarantee ; Model: Royal Oak Price on request Gmtbroker Reference: 15400ST.OO.1220ST.01 Audemars Piguet's Royal Oak Stainless Steel 41mm, Automatic with Skeleton Back Gorgeous Customized Hand Engraved Skull Dial A powerful & striking watch - will definitely draw attention & makes for a great conversation piece. This watch features: From the famous Royal Oak collection with the immediately recognizable hexagon design bezel secured by 8 polished steel screws. This watch features: - Brushed finished Black DLC Coated stainless steel case & bracelet with polished bevel edges. - Black Coated Hands - Date window located at the 3 o'clock position. - AP Caliber 3120 beats at 21,600 vph, contains 40 Jewels, composed of 280 parts & has an approximate power reserve of 60 hours. - Bi-directional 22kt gold rotor with ceramic ball bearings. Rotor bears both the AP design logo & the the Audemars/Piguet families crests. Also known as: Audemars Piguet 15400ST.OO.1220ST.01, Ap 15400ST.OO.1220ST.01, 15400STOO1220ST01, 15400ST.00.1220ST.01