Extreme Exploration The Rolex Deepsea is a professional dive watch engineered for the most demanding underwater conditions. With its robust construction and innovative features, it represents the pinnacle of Rolexs expertise in deep-sea timekeeping. Built for the Deep This model, from 2019, features a 44mm case and a rotatable bezel calibrated for 60 minutes. It is powered by the calibre 3235 automatic movement with an approximate 72-hour power reserve and fitted with an Oyster bracelet featuring Fliplock, Oysterlock and Rolex Glidelock clasp systems.