18kt white gold case with a 18kt white gold Rolex oyster bracelet. Fastened 18kt white gold bezel with engraved tachyeter markings. Blue dial with silver-tone hands and Arabic numeral hour markers. Minute markers across the outer rim. Dial Sort: Analog. Luminescent hands and markers. Chronograph – three sub-dials displaying: 60 second, 30 minute and 12 hour. Rolex calibre 4130 automatic movement with a seventy two-hour power reserve. Scratch resistant sapphire crystal. Screw down crown. Cast case back. Case size: 40 mm. Spherical case form. Oysterlock clasp. Waterproof at 100 meters / 330 feet. Purposes: chronograph, tachymeter, hour, minute, second. Luxury watch taste. Watch label: Swiss Made. Rolex Cosmograph Daytona Blue Dial 18K White Gold Oyster Mens Watch 116509BLSO.