2025 Rolex Deepsea 136660

The Rolex Deepsea 136660 is Rolex’s most extreme production dive watch, engineered as a professional-grade tool watch that combines brutal underwater capability with unmistakable luxury finishing. Housed in a massive 44 mm Oystersteel case with the brand’s patented Ringlock System, a 5.5 mm domed sapphire crystal, and a helium escape valve, it is water resistant to an astonishing 3,900 metres (12,800 feet), placing it among the most technically impressive mechanical dive watches ever made. Powered by Rolex’s calibre 3235 automatic movement with a 70-hour power reserve, the Deepsea balances ruggedness with chronometer precision, while details like the black Cerachrom ceramic bezel, Chromalight luminescence, and Glidelock-adjustable Oyster bracelet reinforce its purpose-built character. Despite its formidable size and weight, the 136660 refines the previous generation with a slimmer bezel profile, improved proportions, and enhanced wrist comfort, making it feel less industrial and more wearable without losing the overengineered charisma that defines the Deepsea line.