This allows the helium and any other gases used in the breathing gas to be released from inside the watch case. A one-way valve, it activates when the differential between the inner and the outside pressure reaches a critical level. Working with COMEX and Doxa S.A., Rolex developed and patented the helium escape valve. One that wouldn’t be destroyed by the changes in atmospheric pressure that occur in diving bells. At the time they needed a diving watch for their professional divers to use whilst working on deep sea oil rigs. The French company specialized in engineering and deep diving operations in the 1960s. The original concept was developed in conjunction with COMEX. People who spent long periods underwater using a technique called saturation diving. Instead, it was created to serve a specific audience. The Rolex Sea-Dweller did not start out life as a commercial product. A (Very) Brief History Of The Omega Planet Ocean And Rolex Sea-Dweller You never know, you might even end up changing your mind. Check out our break-down below and tell us which is your favourite. That’s not going to stop us comparing them side by side though. Most of whom will be loyal to one brand or the other. Likely to appeal to very different types of buyers. In reality though, these are two very different watches. But can it compare to the Rolex Sea-Dweller Ref 126600? Going by the spec sheet, some would say yes. The Omega Seamaster Planet Ocean 600m Co‑Axial Master Chronometer 43.5mm Ref 215.30.44.21.01.001 is a great watch.
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