Pre-owned Rolex Sea-Dweller Deepsea ref 136660B (2025) with the D-Blue “James Cameron” dial is one of the most technically impressive dive watches Rolex has ever produced. The dial’s signature gradient fades from bright blue at the top to deep black at the bottom, representing James Cameron’s historic solo descent to the Mariana Trench, while the word “DEEPSEA” appears in green, the same shade used on Cameron’s Deepsea Challenger submersible. The 44mm Oystersteel case is built around Rolex’s Ringlock System, allowing the watch to withstand depths of up to 3,900 meters (12,800 feet). This model replaced the earlier 126660 and introduced a few key upgrades, most notably a larger date window. The bracelet was also refined with a slightly wider Oyster bracelet and an updated clasp system for better balance on the wrist. It’s an extreme tool watch with real exploration roots and a dial that tells the story. Shop Rolex Sea-Dweller Collection