Rolex Sea Dweller

Rolex Submariner Black Index Dial Oyster Bracelet Mens Watch 116613BKSO List Price: $12,200.00 Price: $11,950.00 You Save: $250.00 (2%)

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The Origin of the COMEX Rolex 'Sea Dweller' Diver's Watch | WorthPoint

by David Mycko

During the late 1960s, in collaboration with COMEX—a France-based professional dive company—Rolex developed its “Submariner” model to meet the most stringent technical and professional demands of the professional deep-sea diver. In the process, Rolex eventually produced a very different watch from the Submariner and named it the “Sea Dweller,” which is still in production today.

COMEX divers not only needed solutions for water resistance at extreme depth, they also faced the danger of explosive decompression caused by helium penetrating the interior of the watch (divers breathed the mixture of oxygen and helium within their hyperbaric chamber after lengthy deep sea dives). To maintain a pressure identical to that underwater, the mixture in the hyperbaric chambers remained the same during the different phases of work and rest periods. This system was designed to eliminate the need to depressurize the chamber after each phase of work.

Before returning to free air, and depending on the depth attained, a period of depressurization was necessary to equalize the internal and external tension of the human organism. Though the process of depressurization is slow, the gas that accumulated inside the watch, having no means to escape fast enough, exploded the crystal off the watch, thereby risking injury to those inside the chamber and severely damaging an expensive watch.

Rolex collaborated with COMEX to develop a solution by installing a one-way pressure escape valve on the side of the watch case, at the nine o’clock position. The one-way valve will begin to equalize the pressure inside the watch when the difference between the exterior and interior of the watch exceeded 2.5 kg. per sq. cm.

The Helium Gas Escape Valve (HEV) was featured and tested on the Single Red and Double Red Patent Pending Submariner Sea-Dwellers, circa 1967-1969. Once the testing was successfully completed and Patent of the HEV approved, COMEX placed a special order with Rolex for the supply of a number of dive watches featuring the HEV and case with either ref. 5513 or 5514. This would be delivered to COMEX only and not provided for general sale.

Rolex Sea-Dweller Deep Sea is equipped

by Alex

Fully developed by Rolex, made the Sea-Dweller Deep Sea Watch new one that benefits from important technical innovations. It is equipped with a Ringlock a new case architecture Rolex, for which the clock thecolossal to withstand the pressure of the water deep patent. This is the first watch on a bracelet with a double extension system making it easily adaptable for greater comfort in wear over dive suit.

The Rolex Sea Dweller Deepsea Made the Perfect Retirement Gift

by admin

The Rolex Sea Dweller Deepsea Made the Perfect Retirement Gift

I felt like I had been to a hundred stores when I was trying to find the ideal gift for our boss, who was retiring.   Everyone In the office has chipped in generously and we had a sizable amount to spend, but no one could agree on what to get the man who seemed to have everything.  Finally one day someone saw an add for a Rolex Sea Dweller Deepsea and we realized the boss did not have one, despite his years of boating and diving.  We got the watch and knew we had chosen perfectly when we saw his eyes light up.  We had not known it then, but he retired to the Florida Keys, where he now spends his days diving.

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