Rolex Oyster Perpetual Cosmograph Daytona 18K White Gold Mens Chronograph Watch Ref. 116519LN

A men's chronograph watch from Rolex, the Oyster Perpetual Cosmograph Daytona model. Features an 18K white gold case with a fixed bezel that includes a black Cerachrom insert and is also made of 18K white gold. Powered by a Calibre 4130 automatic movement known for its robustness and offering up to 72 hours power reserve. The round case, measuring 40 mm in diameter, has a steel dial accented with luminous silver-tone hands and index hour markers. Minute markers are present around the outer rim of the bezel. Luminescent material is applied to both the hour indices and baton hands ensuring excellent readability in low light conditions. Water resistant up to 100 meters / 330 feet, suitable for recreational swimming but not professional diving. Equipped with a screw-down crown and a solid case back protecting internal components including the sapphire crystal which is scratch-resistant. Functions include analog display, chronograph capability (with three sub-dials: seconds, minutes, hours), tachymeter function indicated by minute markers on the bezel or dial, hour, minute, second subdials. Includes date functionality at 3 o'clock position but does not have a day display feature. The bracelet is crafted from Oysterflex material and secured with an Oysterlock clasp made of 18K white gold, allowing for size adjustments using the folding mechanism. Overall finish is polished or satin-finished as per typical Rolex standards, though specific case back details are not provided beyond being solid.