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  2. Eco-Drive - Wikipedia

    en.wikipedia.org/wiki/Eco-Drive

    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.

  3. Citizen Watch - Wikipedia

    en.wikipedia.org/wiki/Citizen_Watch

    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 ...

  4. Diving watch - Wikipedia

    en.wikipedia.org/wiki/Diving_watch

    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 ...

  5. Water Resistant mark - Wikipedia

    en.wikipedia.org/wiki/Water_Resistant_mark

    Diver's 100 m Minimum ISO standard (ISO 6425) for scuba diving at depths not suitable for saturation diving. Diver's 100 m and 150 m watches are generally old(er) watches. Diver's 200 m or 300 m Suitable for scuba diving at depths not suitable for saturation diving. Typical ratings for contemporary diver's watches. Diver's 300 + m for mixed-gas ...

  6. History of scuba diving - Wikipedia

    en.wikipedia.org/wiki/History_of_scuba_diving

    Scuba diver of the late 1960s. The history of scuba diving is closely linked with the history of the equipment.By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon ...

  7. Citizen USA: A 50 State Road Trip - Wikipedia

    en.wikipedia.org/wiki/Citizen_USA:_A_50_State...

    Citizen USA: A 50 State Road Trip is an HBO documentary film directed by Alexandra Pelosi. [1] [2] Overview. A documentary about new American immigrants that spans ...