2017 Rolex Sea-Dweller 50th Anniversary (photo: Rolex)

One of the most significant changes made to this model is the case size. The Oyster case of the 2017 Sea-Dweller measures 43mm in diameter. Another notable difference between this and past configurations is the addition of the Cyclops magnifying lens over the date aperture at 3 o'clock. In homage to the original, the model name is colored in red against the black dial. A Triplock winding crown sits between crown guards and seals the case for a depth rating of 1,220 meters.

2017 Rolex Sea-Dweller Side View (photo: Rolex)

The helium escape valve patented by Rolex in 1967 helps this robust diver's watch regulate pressure during the decompression phase of deep sea dives. A black Cerachrom bezel displays the 60-minute graduated scale that allows divers to time their dives. The hands and hour markers feature Chromalight luminescence for visibility in the darkness. Professional divers also benefit from the extension systems that form part of the Oysterlock safety clasp. A Fliplock extension link extends the bracelet by 26mm and the Glidelock extension system allows the wearer to increase the bracelet by 20mm in increments of 2mm.

2017 Rolex Sea-Dweller Lume (photo: Rolex)

The power reserve of 70 hours and functionality of the 2017 Sea-Dweller are carried out by a 3235 self-winding mechanical movement manufactured in-house by Rolex. This caliber features tech innovations like the Chronergy escapement and blue Parachrom hairspring. The suggested retail price for the 50th Anniversary Rolex Sea-Dweller model is $10,800 US. For more information visit rolex.com. To check out all of the new model configurations introduced by the watchmaker at Baselworld 2017, click here.

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