It was the first Rolex toolwatch to receive a sapphire crystal, thicker case and an improved helium escape valve. The last Comex Sea-Dweller 4000 Rolex reference number is 16600.
The Sea-Dweller Submariner 2000 models were succeeded by the Rolex Oyster Perpetual Sea-Dweller 4000 (4000 ft = 1220 m) model, with an increased depth rating to 1,220 metres (4,000 ft). The Rolex Sea-Dweller 2000 watch case has a diameter of 40.0 mm (1.57 in) mm and a thickness of 14.7 mm (0.58 in). The Sea-Dweller Submariner 2000 watches have two red text lines on the watch dial, which led to an unofficial "Double Red" designation by watch collectors. The Sea-Dweller diving watch range has been standard issue for Comex divers since 1977. Until the 2017 introduction of the reference number 126600, Sea-Dweller's were also distinguished by the absence of the ( plano-convex) date magnifying lens ("cyclops") present on most other Rolex models as it was impossible to attach a cyclops with Ultraviolet (UV) light curing adhesive at the top of a (domed) watch crystal exposed to the pressure encountered at its test depth. Early Sea-Dwellers, however, did not always have the valve. Most Sea-Dweller watches incorporate a helium escape valve for saturation diving. Later Sea-Dweller versions made in 1969 had an increased depth rating of 610 metres (2,000 ft) and so-called Double Red dials. Other examples were given to Tektite habitat Aquanauts such as Ian Koblick or Richard Waller. Most of these non-valve watches were awarded to pioneers in underwater exploration like Robert Palmer Bradley, who was a pilot of Deepstar 4000. The first version of the Sea-Dweller was the so-called "Single Red" with a depth rating of 500 metres (1,600 ft). industrial deep-sea diving but the French company became a partner of Rolex only in late 1971. In the past, it was wrongly assumed the Sea-Dweller was developed in cooperation with Comex S.A.
CHALLENGER DEEP WIKI SERIES
Brauer tested the watch during a series of Physalie dives at the Comex Hyperbaric Center in Marseille, France. Ralph Werner Brauer, a professor for physiology at Duke University and director of the Wrightsville Marine Biomedical Laboratory of the University of North Carolina Wilmington. The very first valve prototype was given to Dr. Barth, a US Navy diver who pioneered saturation diving during the US Navy Genesis and SEALAB missions led by Dr. The original idea for using a one-way valve came from Robert A. The helium-release valve allows helium to escape in a controlled way from the case during decompression preventing damage to the watch. This can, in some cases, cause the watch crystal to pop off. During decompression, the pressure inside the chamber can decrease more rapidly than the pressure inside the watch case. Helium atoms inside a pressure chamber can work their way inside a watch. Walker Lloyd approached Rolex with the idea for the valve as watches used in saturation diving experienced problems during decompression. In late 1967, an archeological diver named T. The first Sea-Dweller models made between April and June 1967 did not feature a helium release valve.
The delay was probably caused by issues with obtaining the patent for the helium escape valve. The Rolex Sea-Dweller reference 1665 was developed in the second quarter of 1967 but became available to the public only in 1971.
CHALLENGER DEEP WIKI PROFESSIONAL
The Deepsea models come equipped with the brand's patented Ringlock system, which was designed to provide a higher degree of pressure resistance.ĭuring the 1960s, the needs of professional divers working at great depths led to the development of the first 'ultra water resistant' tool watches designed for conducting safe diving operations at 300 m + (1,000 ft +) depths. Today's Sea-Dweller models are available in steel or steel and yellow gold, and have a 43 mm case. Launched in 1967 with a diving depth of 610 metres (2 000 ft), the Sea-Dweller features a gas escape valve, developed by the brand specifically for watches, which allows the helium trapped in the watch while decompressing to be released at a given pressure during decompression, while preserving the watch case's water resistance. In 2022 the dimensionally large Deepsea Challenge Sea-Dweller model with an official depth rating of 11,000 metres (36,090 ft) was added to the line. The Rolex Oyster Perpetual Date Sea-Dweller is a line of diver's watches manufactured by Rolex, with an underwater diving depth rating of 1,220 meters (4 000 ft) and up to 3,900 metres (12,800 ft) for the Sea-Dweller Deepsea model. The Sea-Dweller's integrated helium escape valve. Line of watches by Rolex Rolex Sea-Dweller 4000 with a 1,220 m (4,000 ft) depth rating.
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