Oyster Perpetual Cosmograph Daytona in 18K white gold, with stainless steel and gloss black dial and Oysterflex strap, black Cerachrom bezel engraved with tachymeter. The stainless steel and bright black dials of the watch have a snail-shaped small seconds dial, and the 18ct gold hour markers and hands are coated with clear and easy-to-read Chromalight luminous material. Cosmograph Daytona 18K gold models with Cerachrom bezel, all with Oysterflex straps. Developed and patented by Rolex, this innovative strap combines the robustness and reliability of a metal strap with the comfort of a rubber strap. Rolex has its own foundry, which casts high-quality 18K gold alloys. By mixing different amounts of silver, copper, platinum or palladium, different types of 18K gold can be extracted: gold, pink gold or white gold.
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