For the 50th anniversary Rolex just presented me its new Oyster Perpetual Sea-Dweller

The video should give you a good impression about the ne Sea-DwellerÂ
Waterproof Oyster case in 904L steel Helium escape valve
Cerachrom bezel insert in virtually scratchproof ceramic
Screw-down Triplock winding crown with triple waterproofness system
Paraflex shock absorbers
Precision
Paramagnetic blue Parachrom hairspring
Superlative Chronometer (COSC + Rolex certi cation after casing)
Unidirectional rotatable bezel Oysterlock folding safety clasp
Rolex Glidelock and Fliplock extension systems
Chromalight display with long-lasting luminescence
Self-winding via Perpetual rotor
Chronergy escapement with optimized energy efficiency
70-hour power reserve
10.800 CHF including VAT
1967 – 2017. To mark the 50th anniversary of the Sea-Dweller, Rolex is launching a new version of this divers’ watch. Waterproof to 1,220 metres (4,000 feet), the new Sea-Dweller is equipped with a 904L steel case enlarged to 43 mm, and with Rolex’s latest-generation mechanical movement, calibre 3235. The latter is at the forefront of watchmaking technology and guaranteeing the highest standards of precision and reliability.
For the first time, the crystal of the new Sea-Dweller is fitted with a Cyclops lens at 3 o’clock – a key characteristic of Rolex watches. In reference to the first model created in 1967 – 50 years ago – the name “Sea-Dweller” is inscribed in red on the dial.

The model incorporates all of Rolex’s latest technical developments: a case and bracelet in highly corrosion-resistant 904L steel; a unidirectional rotatable bezel with a Cerachrom insert in ceramic, virtually impervious to scratches and ultraviolet rays; a Chromalight display with long-lasting luminescence for optimum legibility in the dark; a Triplock winding crown with triple waterproofness system; an Oysterlock safety clasp that prevents accidental opening; and the Rolex Glidelock and Fliplock extension systems which, together, allow divers to extend the bracelet without the use of tools by a total of 46 mm in order to wear the watch over diving suits of up to 7 mm thick.
Finally, the new Sea-Dweller is of course equipped with the function for which it is renowned: the helium escape valve.