18kt yellow gold case with a 18kt yellow gold Rolex oyster bracelet. Fixed 18kt yellow gold bezel showing tachymeter markings. Black mother of pearl dial with luminous yellow gold-tone hands and diamond hour markers. Minute markers around the outer rim. Dial Type: Analog. Luminescent hands. Chronograph – three sub-dials displaying: 60 second, 30 minute and 12 hour gold dust. Rolex calibre 4130 automatic movement with a 72-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Solid case back. Case size: 40 mm. Round case shape. Oysterlock clasp. Water resistant at 100 meters / 330 feet. Functions: chronograph, hour, minute, second. Luxury watch style. Watch label: Swiss Made. Rolex Cosmograph Daytona Black Mother of Pearl Dial 18K Yellow Gold Mens Watch 116508BKMDO.