The Rolex Cosmograph Daytona 126518LN-0004 is a luxurious chronograph watch that combines precision engineering with elegant design. It features a 40mm 18K yellow gold case, a black ceramic bezel with a tachymetric scale, and a black dial with champagne sub-dials. Powered by the Rolex Caliber 4131 movement, it offers a 72-hour power reserve and is water-resistant up to 100 meters. The watch is complemented by a black Oysterflex bracelet, providing both comfort and durability.