Rolex

Sea-Dweller (Black Dial)

Name: Rolex Sea-Dweller (Black Dial)
Brand: Rolex
SKU: 126603
Availability: InStock

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Case43mm steel & gold

DialBlack

MovementCalibre 3235

BraceletTwo Tone Oyster

Year2023

PapersBox and Papers

The Sea-Dweller line descends from saturation divers of the 1960s, engineered with a helium escape valve for life in pressurised habitats. It is the professional’s Submariner.

This 2023 Rolex Sea-Dweller pairs a 43mm steel & gold case with a black face. Calibre 3235 keeps it running.

Fun fact: Every Royal Oak dial is cut on a rose engine one pass at a time before it is plated, and the eight hexagonal screws in the bezel are aligned by hand at the end of assembly. Both are why the model still costs what it does.

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