18 kt yellow gold case with a brushed 18 kt yellow gold bracelet. Fixed 18 kt yellow gold bezel. White dial with gold-tone hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Date display at the 3 o'clock position. Chronograph - three sub-dials displaying: 60 second, 30 minute and 12 hour. Automatic movement with 40 hour power reserve. Ap caliber 2326/2840 engine. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Case diameter: 42 mm. Case thickness: 14.2 mm. Octagon case shape. Deployment clasp with push button. Water resistant at 100 meters / 330 feet. Functions: chronograph, date, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Audemars Piguet Royal Oak Offshore Automatic Chronograph Yellow Gold Men's Watch 25721BA.OO.1000BA.03.