Rolex Sea-Dweller in Oystersteel with a Cerachrom bezel insert in black ceramic

The Oyster Perpetual Sea-Dweller in Oystersteel with a Cerachrom bezel insert in black ceramic and an Oyster bracelet.

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 equipped 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, filled with luminescent material that emits a long-lasting blue glow for excellent legibility in dark conditions.

The black dial of the Sea-Dweller has the large hands and indices reserved for Rolex professional models. The dial bears the name Sea-Dweller in red, a reference to the first model.

The innovative Chromalight display on the dial pushes back the boundaries of visibility in dark environments. Its distinctive blue glow lasts up to eight hours with a uniform luminosity, practically twice as long as that of standard luminescent materials.

Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential.

Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.

The Oyster bracelet is a perfect alchemy of form and function, aesthetics and technology, designed to be both robust and comfortable.

It is equipped with an Oysterlock clasp, which prevents accidental opening, and an ingenious Glidelock, allowing fine adjustments of the bracelet without using any tools — and allowing it to be worn comfortably over a diving suit.

Model Case

Type

• Oyster, 43 mm, Oystersteel

Diameter

• 43 mm

Material

• Oystersteel

Bezel

• Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in black ceramic, numerals and graduations coated in platinum

Oyster Architecture

• Monobloc middle case, screw-down case back and winding crown

Winding crown

• Screw-down, Triplock triple waterproofness system

Crystal

• Scratch-resistant sapphire, Cyclops lens over the date

Water Resistance

• Waterproof to 1,220 metres / 4,000 feet, helium escape valve

Movement

Type

• Perpetual, mechanical, self-winding

Calibre

• 3235, Manufacture Rolex

Precision

• -2/+2 sec/day, after casing

Oscillator

• Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers

Winding

• Bidirectional self-winding via Perpetual rotor

Power reserve

• Approximately 70 hours

Functions

• Centre hour and minute hands, small seconds hand at 6 o’clock. Chronograph via centre seconds hand, 30-minute counter at 3 o’clock and 12-hour counter at 9 o’clock. Stop seconds for exact time setting

Bracelet

Type

• Oyster, three-piece solid links

Bracelet Material

• Oystersteel

Clasp

• Folding Oysterlock safety clasp with Rolex Glidelock extension system

Dial

Type

• Intense black

Details

• Highly legible Chromalight display with long-lasting blue luminescence

Case reference 126600

Bracelet reference 97220