Rolex Oyster Perpetual Cosmograph Daytona 116500LN. Featuring a 40mm steel case, water resistant to 100 meters. Automatic 4130 chronometer movement with a 72 hours power reserve. Black dial with black ringed sub dials and a black monobloc cerachrom bezel in ceramic with engraved tachymetric scale. Oyster flat three piece links, bracelet made from 904L steel which is used in production and transport of Sulphuric acid due to its high resistance to corrosion. Folding Oysterlock safety clasp. Box and papers dated April 2017.