Salt of the Earth. The robust and reliable @Rolex Submariner Date in 18kt yellow gold features a royal blue dial and a Cerachrom bezel insert in blue ceramic. This high-tech ceramic is extremely hard and resistant to environmental effects. For optimum legibility, the moulded graduations, inscriptions and numerals are coated with a thin layer of gold via a PVD (Physical Vapour Deposition) process. Impervious to the elements. #Rolex #SubmarinerDate #OfficialRolexRetailer