18 kt rose gold case with a black alligator leather strap. Fixed bezel. Black grande tapisserie dial with luminous hands and stick hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands and markers. Chronograph - two sub-dials displaying: 60 second and 30 minute. Hand-wound mechanical movement with 72 hour power reserve. Scratch resistant sapphire crystal. Skeleton case back. Case diameter: 44 mm. Case thickness: 12.9 mm. Octagon case shape. Deployment clasp with push button. Water resistant at 20 meters / 60 feet. Functions: chronograph, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Audemars Piguet Royal Oak Tourbillon Chronograph 18 kt Rose Gold Mens Watch 25977OR.OO.D002CR.01.