REFERENCE
136660

MODEL CASE
Oyster, 44 mm, Oystersteel

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

WATER-RESISTANCE
Waterproof to 3,900 metres / 12,800 feet, helium escape valve

MOVEMENT
Perpetual, mechanical, self-winding

CALIBRE
3235, Manufacture Rolex

POWER RESERVE
Approximately 70 hours

BRACELET
Oyster, flat three-piece links

DIAL
Black

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve

DIAMETER
44 mm

MATERIAL
Oystersteel

WINDING CROWN
Screw-down, Triplock triple waterproofness system

CRYSTAL
Domed, 5.5 mm-thick scratch-resistant sapphire

PRECISION
-2/+2 sec/day, after casing

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

WINDING
Bidirectional self-winding via Perpetual rotor

BRACELET MATERIAL
Oystersteel

CLASP
Folding Oysterlock safety clasp with Rolex Glidelock extension system

DETAILS
Highly legible Chromalight display with long-lasting blue luminescence

ROLEX DEEPSEA m136660-0004
Ceramic Bezel and Luminescent Display

Ceramic Bezel and Luminescent Display

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 sleek black 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.

Black dial

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 gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.

Black dial
Oystersteel

Oystersteel

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.

ROLEX DEEPSEA m136660-0004

REFERENCE
136660

MODEL CASE
Oyster, 44 mm, Oystersteel

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

WATER-RESISTANCE
Waterproof to 3,900 metres / 12,800 feet, helium escape valve

MOVEMENT
Perpetual, mechanical, self-winding

CALIBRE
3235, Manufacture Rolex

POWER RESERVE
Approximately 70 hours

BRACELET
Oyster, flat three-piece links

DIAL
Black

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve

DIAMETER
44 mm

MATERIAL
Oystersteel

WINDING CROWN
Screw-down, Triplock triple waterproofness system

CRYSTAL
Domed, 5.5 mm-thick scratch-resistant sapphire

PRECISION
-2/+2 sec/day, after casing

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

WINDING
Bidirectional self-winding via Perpetual rotor

BRACELET MATERIAL
Oystersteel

CLASP
Folding Oysterlock safety clasp with Rolex Glidelock extension system

DETAILS
Highly legible Chromalight display with long-lasting blue luminescence

Ceramic Bezel and Luminescent Display

Ceramic Bezel and Luminescent Display

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 sleek black 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.

Black dial

Black dial

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 gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.

Oystersteel

Oystersteel

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.