Rolex Deepsea

The Rolex Oyster Perpetual Deepsea Ref. 116660 with the graduated D-Blue "James Cameron" dial is one of Rolex's most technically advanced professional dive watches, created to commemorate filmmaker and explorer James Cameron's historic 2012 solo descent to the deepest known point on Earth, the Mariana Trench's Challenger Deep. Introduced in 2014, the watch features a substantial 44 mm Oystersteel case engineered with Rolex's patented Ringlock System, comprising a nitrogen-alloyed steel central compression ring, a 5.5 mm-thick domed sapphire crystal, and a grade 5 titanium caseback, enabling an extraordinary 3,900-metre (12,800-foot) water resistance. Its distinctive D-Blue dial transitions from brilliant blue at the top to deep black at the bottom, symbolising the journey from the ocean's sunlit surface into the abyss, while the bold Chromalight hour markers and Mercedes hands provide exceptional legibility in low-light conditions. A unidirectional Cerachrom ceramic bezel with a platinum-coated 60-minute diving scale allows precise timing of dives, and beneath the dial beats the dependable Rolex Calibre 3135, a self-winding COSC-certified chronometer renowned for its robustness, accuracy, and approximately 48-hour power reserve. The watch is completed by the solid Oyster bracelet fitted with the innovative Glidelock and Fliplock extension systems, allowing effortless adjustment over a wetsuit, making the Deepsea 116660 D-Blue not only an engineering masterpiece built for the most extreme underwater environments but also one of Rolex's most recognisable and collectible modern professional timepieces, celebrated for its unique dial, remarkable technical achievements, and direct connection to one of the greatest milestones in human deep-sea exploration.