Deepsea

The Rolex Deepsea was engineered for the ultimate test: professional deep-sea diving. Born from Rolex’s pioneering work with saturation divers and famously linked to the 2012 Mariana Trench expedition, this watch represents the brand’s most advanced take on underwater endurance. Its massive 44mm case and patented Ringlock System allow for a staggering 3,900-meter water resistance, making it a standout even within the Sea-Dweller family.

Key references include the 116660 (introduced in 2008) and the updated 126660 (released in 2018), the latter featuring the in-house Caliber 3235 with a 70-hour power reserve and improved accuracy. The “D-Blue” dial variant, commemorating James Cameron’s historic dive, commands a premium over the classic black dial, largely due to its gradient blue-to-black design and limited production window.

Price differences hinge on dial variant, condition, and whether the watch comes with its original box and papers. Early 116660 models offer a slightly chunkier case and the older Caliber 3135, while the 126660 brings a subtly refined case and bracelet for better wearability. When buying, focus on bracelet stretch, bezel condition, and clarity of the original crystal—these details impact both wear and value for this purpose-built Rolex tool watch.