Black ceramic case with a black rubber strap. Fixed bezel. Black dial with skeleton hands and index hour markers. Minute markers around the outer rim. Dial Type: Analog. Chronograph - sub-dials displaying: two - 60 second and 30 minute. Automatic movement. Scratch resistant sapphire crystal. Case diameter: 44.5 mm. Case thickness: 14.5 mm. Round case shape. Deployment clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, second. Additional Info: 42 hour power reserve. Luxury watch style. Hublot Big Bang Ayrton Senna Black Dial Ceramic Rubber Mens Watch 309.CM.134.RX.AES07.