Rolex

Sea-Dweller

Name: Rolex Sea-Dweller
Brand: Rolex
SKU: 126600
Price: 13400 USD
Availability: InStock

Ref. 126600

$13,400 · AED 49,200

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Case43mm Oystersteel, black Cerachrom bezel, helium escape valve

DialBlack, red Sea-Dweller line

MovementCalibre 3235

BraceletOyster with Glidelock extension, Oystersteel

Water1,220m

ConditionUnworn

Year2026

The Sea-Dweller was built in 1967 for saturation divers, with a helium escape valve that lets gas out of the case during decompression. The 126600 of 2017 grew the case to 43mm and printed the name in red on the dial again, a nod to the first examples.

This Rolex Sea-Dweller wears a 43mm Oystersteel case and a black dial. Calibre 3235 inside, on an Oystersteel Oyster bracelet with the Glidelock extension.

Fun fact: The helium escape valve was developed with COMEX, the French commercial diving company, whose divers tested Sea-Dwellers on saturation dives.

Sea-Dweller

The saturation diver's Rolex, built around a valve that lets helium out

Rolex created the Sea-Dweller in 1967 for divers working out of pressurised habitats, and improved it afterwards in partnership with Comex. The defining part is not the depth figure but the helium escape valve in the case side, which opens by itself when helium that seeped in during a saturation dive builds up inside the case on the way back to the surface. The 43 mm Sea-Dweller is rated to 1,220 m, runs a unidirectional bezel with a black Cerachrom insert and an Oysterlock clasp with the Glidelock extension, and was the first in the line to take a cyclops over the date; it is made in Oystersteel and in Oystersteel with yellow gold. Rolex now lists the Deepsea as a family of its own, the 44 mm model rated to 3,900 m and built on the Ringlock System case architecture.

helium escape valve at 9 o'clock

unidirectional Cerachrom bezel

Oysterlock clasp, Glidelock extension

red SEA-DWELLER line on the Oystersteel dial