Rolex 136660 (Pre-owned - Good) — USD 15,790 on eBay

The Rolex Deepsea Sea-Dweller ref. 136660 is positioned as a professional saturation diving instrument within the Oyster Perpetual collection, designed for extreme underwater exploration. It represents the pinnacle of Rolex's dive watch engineering, offering enhanced water resistance and a more substantial case profile compared to the standard Sea-Dweller models. This reference features a 44mm Oyster case crafted from Oystersteel, equipped with a Ringlock System that allows it to withstand immense pressure. It houses the Caliber 3235, a self-winding mechanical movement entirely developed and manufactured by Rolex, featuring a Chronergy escapement and a power reserve of approximately 70 hours. The watch is distinguished by its D-blue dial, transitioning from brilliant blue to abyssal black, and a unidirectional rotatable bezel with a black Cerachrom insert. For collectors, the ref. 136660, particularly with the D-blue dial, holds significance due to its association with James Cameron's Deepsea Challenger expedition. It is valued for its robust construction, advanced technical features, and its status as a highly capable and visually distinctive professional diver's watch.