1988, the French diving company Comex (Compagnie Maritime d'Expertises) of the Hydra VIII task, to 534 m depth of the world's open water deep dive record, the divers during the mission are wearing Rolex Oyster Perpetual Sea type watch. A legend begins. Diving the most to see how the Rolex 4000 to conquer the deep sea The sea-type was launched in 1967, water depth of 610 meters (2,000 feet) Deep-sea key, the original row of helium valves Developed in 1967, the Watertight is 610 meters (2,000 feet) deep and 1,220 meters (4,000 feet) in 1978, and is designed for submarine workers and deep-water pioneers such as water-circle explorers. Covering nearly 70% of the Earth's surface waters in the shuttle. The sea to the same type of personnel and divers to adapt to the mixed gas, the gas environment for high-pressure set by the helium or hydrogen and other light gas composition for breathing. In order to release the gas safely and to avoid fatal decompression, the diver needs to decompress for a long time before surfacing, and the watch undergoes the same process. In view of this, was released in 1967 to join the marine research and development of an important device ─ ─ helium discharge valve. The safety valve in the case design clever, in the growing popularity of deep dive activities play an important role, and Comex is the leading brand in this category. Henri Germain Delauze, the late founder and president of Comex, is a pioneer in deep-sea diving and has talked about his favorite watch: "For a diver who breathes hydrogen, the Rolex watch is Indispensable. "He explained:" Diving, the time is critical. Whether the basic operation, changing the composition of the gas mixture, calculate the time to stay in decompression or out of diving clock, one second can not go wrong. Precise, rugged, reliable watches are essential. "
In 1953, when the development of scuba diving is still in its early stages, Rolex has been created prototype diving watch: Oyster Perpetual Submariner-type, water depth of 100 meters. By 1954, the submarine-type waterproof performance doubled to 200 meters, diving depth of 60 meters or less and use of air breathing divers, to provide adequate safety dive range. With its excellent reliability, this watch will soon be the professional divers of all ages. Divers and Rolex work closely together to continue to help improve watch performance. In 1962, a diver in California to refresh the deep dive record of 313 meters. Obviously, divers need a new generation of watches, to resist the pressure of 200 meters deep. In fact, Rolex was in 1960, an experimental watch on the deep sea submarine Trieste (Trieste), the final successful dive to about 11,000 meters deep in the ocean, citing the Rolex watch technology Enough to enhance the performance of submarine-type. In 1966, Comex for the first time completed 160 meters deep industrial diving. The French company has developed a saturated dive technology that is comparable to the underwater house program, which places the hyperbaric chamber onboard to perform maritime missions around the world. Saturated divers into the pressurized diving bell, it will dive to the depth of work. After completion of the diving, they will return to the warm and dry pressurized chamber on the support boat in the same way. The final decompression will only be done at the end of the task. Comex, the industry leader in deep-sea diving, plans to escort divers in less than 300 meters deep within a decade. Rolex has decided to the next diving watch the water depth to 2,000 feet (610 meters). To make the watch dive to a deeper position, in addition to enhance the performance of resistance to external water pressure, the saturated divers also found an unexpected condition is to strengthen the watch to withstand the internal pressure of excess capacity.
Diving watch the most to see how the 4000 to conquer the deep sea Watch must also be effective discharge of excess helium in the case Rolex patented row of helium valves In the overpressure peristaltic breathing gas mixture is composed mostly of helium, while the watch and the diver's body reaction is actually very similar. The inside of the case is filled with helium, because the pressure is the same as in the room. Because helium is very light, and highly volatile, coupled with its molecular volume is the world's smallest, so helium will gradually infiltrated into the watch from the apron. In the decompression stage, helium in human tissue release faster than waterproof watch, the result of pressure in the case of internal accumulation. Diver observed that during the decompression of the mirror due to internal pressure, and like a champagne stopper-like pop-up from the bottle. In view of this, the watch must also be effective to drain the extra helium case.
Diving watch the most to see how the Rolex 4000 to conquer the deep sea An almost impossible task is to assemble a one-way valve on the side of the case In fact, Rolex is not designed to make anti-helium watch, but to complete an almost impossible task is to assemble one-way valve in the case side. When the case exceeds a certain level of internal pressure, the device will automatically start, both the gas released from the case, without affecting the watch's water resistance. The design was designed specifically for the then-new Rolex professional diving watch Oyster Perpetual Sea type and was patented in 1967, the helium valve for deep-sea saturated divers to rise to the surface of the action is particularly important. Comex will soon be the sea as a designated type of watch, and divers continue to break through the limits of human deep-sea diving. First in 1988, a record of 534 meters deep sea, and then in 1992 in the hyperbaric chamber to create a 701 m test depth, decompression period up to 24 days, and this record has not yet been broken.
In 2014, Rolex once again presented this legendary professional diving watch, brought by the improved new Oyster Perpetual Sea to 4000. This 40 mm diameter watch is waterproof to a depth of 1,220 m (4,000 ft) and features several innovations in line with Rolex's latest standards, including a scratch-resistant and UV-resistant Cerachrom ceramic ring, Chromalight luminous display of materials, paramagnetic blue Parachrom hairspring, oyster insurance buckle and Rolex Glidelock stretch system. Of course, the sea to the famous original device ─ ─ helium valve, is also essential.