18kt white gold case with a 18kt white gold oyster bracelet. Fixed 18kt white gold diamond set bezel. Black dial with diamond hour markers. Dial Type: Analog. Chronograph – three sub-dials displaying: 60 second, 30 minute and 12 hour. Rolex Calibre 4130 automatic movement with a 72-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Round case shape. Case size: 40 mm. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, small second, chronometer. Luxury watch style. Watch label: Swiss Made. Rolex Cosmograph Daytona Chronograph Rainbow Diamond Black Dial Watch 116599 RBOW.