Bezel Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in ceramic, numerals and graduations coated in platinum
Water Resistance Waterproof to 1,220 metres / 4,000 feet, helium escape valve
Movement Perpetual, mechanical, self-winding
Calibre 3235, Manufacture Rolex
Power Reserve Approximately 70 hours
Bracelet Oyster, flat three-piece links
Certification Superlative Chronometer (COSC + Rolex certification after casing)
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.
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.
Rolex for the conquest of the deep: waterproof to a depth of 4,000 feet (1,220 metres) for the Oyster Perpetual Sea-Dweller and 12,800 feet (3,900 meters) for the Oyster Perpetual Rolex Deepsea, they are the result of decades of collaboration with diving professionals.