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Citizen Promaster Automatic NY0040-09EE diving watch. In 1959, Citizen launched the Parawater – Japan's first fully-waterproof wristwatch. It became the forerunner to Citizen's range of dive watches, subsequently (1982) called the Promaster Marine range. Also in 1982, Citizen launched the 1300m Professional Diver's watch – the world's most ...
Later specialized tool watch designs were introduced like the Promaster Eco-Drive Professional Diver 1000M Titanium BN7020-09E in 2017. This is a very large watch, the titanium watch case has a diameter of 52.2 mm and thickness of 22 mm and features a helium release valve, designed for mixed gas saturation diving at great depths. [6] [7] [8]
A diving watch, also commonly referred to as a diver's or dive watch, is a watch designed for underwater diving that features, as a minimum, a water resistance greater than 1.1 MPa (11 atm), the equivalent of 100 m (330 ft). The typical diver's watch will have a water resistance of around 200 to 300 m (660 to 980 ft), though modern technology ...
SUEX – Diver propulsion vehicles, underwater navigation systems. [133] Suunto – Finnish manufacturer of compasses, dive computers and sports watches – Dive computers, compasses; Swindell (diving helmet), also known as Advanced Diving Equipment Company – Free-flow open circuit air helmets. [134] The helmet was invented by George Swindell
The test for qualifying a diving watch to bear the word "diver's" on the dial is for repeated usage in a given depth and includes safety margins to take factors into account like aging of the seals, the properties of water and seawater, rapidly changing water pressure and temperature, as well as dynamic mechanical stresses encountered by a ...
The primary procedural distinction between professional and recreational diving is that the recreational diver is responsible primarily for their own actions and safety but may voluntarily accept limited responsibility for dive buddies, whereas the professional diver is part of a team of people with extensive responsibilities and obligations to each other and usually to an employer or client ...
The commercials included high-divers, water skiers, a dolphin, dishwashers, jackhammers, paint mixers, and the propeller of an outboard motor, each torturing a Timex watch. [ 26 ] Consumer demand increased for the watches, despite resistance from jewelers because of the low 50% markup, and Timex opened new distribution channels including ...
The current model range is split into separate lines of Seamaster models: the Aqua Terra line serves as the everyday sports watch model, the Diver Professional 300m line is the successor to the 1995 James Bond watch, the Planet Ocean line serves as the heavier duty dive watch line, and the Seamaster 300 (not to be confused with the Diver 300m ...