Rolex oyster Perpetual Sea-Dweller 4000 watches

Posted by Bobbie - December 11th, 2015

3Rolex launched the modern version of oyster Perpetual Sea-Dweller watches. And the ultra-resistant divers’ model engineered by Rolex for the conquest of the deep. Waterproof to a depth of 4,000 feet (1,220 metres) for the Sea-Dweller and adopt rolex innovative technology and device, including scratch-resistant Cerachrom insert in ceramic, Chromalight material, Paramagnetic blue Parachrom hairspring, Oysterlock safety clasp with Rolex Glidelock extension system. And this watch also equipped with Rolex helium escape valve which get the patent in 1967. During the diving decompression, the pressure will rise, at this time; the clever design of the safety valve will release the helium from the watchcase and make sure the wristwatch effective waterproof.
Cerachrom insert in ceramic and Chromalight display
The Unidirectional rotatable 60-minute graduated scale watch bezel of the rolex sea dweller replica 4000 can let the diver accurately and safely grasp their own diving and decompression time. This watch equipped with a patented black Cerachrom Word circle which made by Rolex and made of highly resistant ceramic, even suffered the ultraviolet irradiation still not faded. The gradual scale adopts PVD (Vapour Deposition Physical, the physical vapor deposition method) coating film skill to fill a layer of platinum film. And the black dial plate assembly Chromalight luminous hour mark and pointer which covered with luminous material reek of lasting blue light in the dark, clear and easy to read.
Oyster watchcase, the symbol of waterproof performance
The Oyster watchcase of this Sea-Dweller 4000 can water resistant to 1220m (4000feet), and is the model of solid and firm. The unique middle watchcase made of solid 904L steel which has strong corrosion resistance. The triangular grooved lines bottom was tighten with exclusive special tools by rolex watchmaker and make the watchcase completely sealed. The cochain crown adopts rolex patent Triplock triple waterproofness system and firmly screwed on the watchcase. The waterproofing effectiveness can compare with the submarine hatch. And protected by the middle case and connected to the crown of the shoulder. Besides, the watch mirror is made of blue crystal. The waterproof watchcase can provide the best protection for the high precision movement.

3135 movement; superlative chronometer
The new Sea-Dweller 4000 adopt 3135 type of automatic cochain mechanical movement which developed by rolex, with date display. Like all rolex replicas Perpetual movements, the 3135 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. In common with all Oyster watch movements, makes it singularly reliable. The balance wheel part is the heart of this watch, equipped with Parachrom hairspring which made of unique niobium-zirconium alloy which offering greater resistance to shocks and to temperature variations.

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