Rolex 18ct Yellow Gold Oyster Perpetual Cosmograph Daytona 116518LN. Featuring a steel 40mm diameter case, and is water resistant to 100 meters. This model uses the 4130 automatic chronometer movement. 72 hours power reserve. Functions; Center hour, minute and seconds hands, small seconds hand at 6 o’clock. Chronograph (center hand) accurate to within 1/8 of a second, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock. Stop seconds for precise time setting. Champagne-colour dial with black sub dials and a black monobloc cerachrom bezel in ceramic with engraved tachymetric scale. Oysterflex strap with 18ct yellow gold folding Oysterlock safety clasp. Box and papers dated December 2017.