Stainless steel case with a stainless steel bracelet. Black dial with silver-tone hands and index hour markers. Dial Type: Analog. Luminescent hands and markers. Hand wind movement. Calibre 2924 manufacture engine. Scratch resistant sapphire crystal. Case diameter: 41 mm. Case thickness: 8.85 mm. Round case shape. Water resistant at 50 meters / 165 feet. Functions: Tourbillon, Hour, Minute, Power Reserve Indicator. Luxury watch style. Watch label: Swiss Made. Audemars Piguet Royal Oak Tourbillion Black Dial Mens Hand Wind Watch 26512ST.OO.1220ST.01.