Description: Rolex Sea-Dweller 136660B Pre-owned/unworn Rolex Sea-Dweller Deepsea ref 136660B (2023) is the latest expression of the “James Cameron” Deepsea, carrying forward that famous D-Blue gradient dial that fades from deep ocean blue to black. It’s still one of the most extreme watches Rolex makes, with a 44mm case and the Ringlock System designed to handle depths most people will never come close to. Compared to the previous ref. 126660B, the updates are subtle