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Rolex Sea-Dweller & Rolex Deepsea - Conquest of the Deep
Sea-Dweller and Rolex Deepsea are the uncompromising professional diving watches. Discover the technical features of these ultra-resistant divers' models.

SEA-DWELLER

Oyster Perpetual

The ultra-resistant divers' models engineered by Rolex for the conquest of the deep. Waterproof to a depth of 4,000 feet (1,220 metres) for the Rolex Sea-Dweller and 12,800 feet (3,900 metres) for the Rolex Deepsea, they are the result of decades of collaboration with diving professionals.

The Rolex Sea-Dweller

The Rolex Sea-Dweller

Black Dial and Red Name

The dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability. Characterised by hour markers fashioned from 18 ct gold to prevent tamishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection. The dial carries the name Sea-Dweller in red, a reference to the first model.

Day
Night

Ceramic Bezel and Luminescent Display

Features of the Sea-Dweller

The 60-minute graduated, unidirectional rotatable bezel of the Sea-Dweller enables divers to precisely and safely monitor their dive and decompression times. It is equiped with a patented black Cerachrom bezel insert manufactured by Rolex in a virtually scratchproof ceramic whose colour is unaffected by ultraviolet rays.  The graduation is coated via PVD (Physical Vapour Deposition) with a thin layer of platinum. The dial features large Chromalight hour markers and hands, fitted with luminescent material that emits a long-lasting blue glow for excellent legibility in dark conditions.

The Oyster Bracelet

Features of the Sea-Dweller

The Oyster Bracelet

The Sea-Dweller’s solid-link Oyster bracelet in Oystersteel is fitted with an Oysterlock safety clasp that prevents accidental opening. A double extension system allows adjustments to be made without the use of tools, so that the watch can be worn comfortably over a diving suit up to 7 mm thick.

Rolex Sea-Dweller & Rolex Deepsea - Conquest of the Deep

The Oyster Case,
Symbol of Waterproofness

Features of the Sea-Dweller

The Sea-Dweller’s Oyster case, guaranteed waterproof to a depth of 1,220 metres (4,000 feet), is a paragon of robustness. Its characteristically shaped middle case is crafted from a solid block of particularly corrosion-resistant Oystersteel. Its fluted case back is hermetically screwed down with a special tool that allows only Rolex watchmakers to access the movement.

Triplock Winding Crown

Model Features

The Triplock winding crown is a patented triple waterproofness system designed especially for divers’ watches. Developed by Rolex, it resists water pressure to depths of 300 metres (1,000 feet) on the Submariner models and some other Professional models, and 3,900 metres (12,800 feet) on the Rolex Deepsea. First introduced in 1970, the Triplock system consists of 10 different elements crafted from the most reliable materials. The winding crown screws down against the Oyster case as tightly and hermetically as a submarine’s hatch.

 

Helium Valve

Model Features

The helium safety valve allows helium to escape from the case of a divers' watch during decompression.

The watchthat conquered the deep

The watch
that conquered the deep

Features of the Sea-Dweller

A technical divers’ watch, waterproof today to a depth of 1,220 metres (4,000 feet), the Oyster Perpetual Sea-Dweller was originally designed for the pioneers of professional deep-sea diving. It is equipped with one of the inventions that contributed to its stature: the helium escape valve, patented by Rolex in 1967. While preserving the waterproofness of the watch, this ingenious safety valve regulates the pressure accumulated in the case during the decompression phases of deep-water saturation dives.

Rolex Sea-Dweller & Rolex Deepsea - Conquest of the Deep

The Rolex Deepsea

The Oyster Perpetual

The robust 44 mm case in Oystersteel, thick domed sapphire crystal and unidirectional rotatable bezel with a 60-minute graduated black Cerachrom insert exude the purposeful character embodied in the name. It is the uncompromising divers’ watch, built for the darkest depths. A true Professional.

RINGLOCK SYSTEM

RINGLOCK SYSTEM

Features of the Rolex Deepsea

An exclusive technical innovation, the Ringlock System allows the Rolex Deepsea’s case to withstand water pressure equivalent to a weight of some three tonnes on the crystal. The three core components of this intricate case architecture are made in the toughest aerospace‑grade materials available.

A nitrogen-alloyed steel central ring forms the backbone of the system, accompanied by a 5.5 mm thick domed sapphire crystal and a case back in grade 5 titanium. The Rolex Deepsea can go deeper than all but a few purpose‑built research submersibles, and more than 100 times beyond the depth that any human could physically survive.