Underwater Heritage The Submariner Date is a professional dive watch that has defined underwater timekeeping since its debut in 1953. Its rotating bezel and luminous dial make it a trusted companion for deep-sea exploration. Technical Assurance This 2021 reference features a 41mm case and is powered by the calibre 3235 automatic movement with a 48-hour power reserve. The rotatable bezel is marked for 60 minutes, and the Oyster bracelet includes both Oysterlock and Rolex Glidelock clasp systems.