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  2. Eco-Drive - Wikipedia

    en.wikipedia.org/wiki/Eco-Drive

    Eco-Drive concept. The technical platform that made the Eco-Drive concept possible was the Eco-Drive caliber 7878 movement. This movement was the first light-powered movement where the solar cells could be mounted under the dial. Previous light powered watches from Citizen and other manufacturers had the solar cell (s) mounted directly on the dial.

  3. Citizen Watch - Wikipedia

    en.wikipedia.org/wiki/Citizen_Watch

    Eco-Drive. Eco-Drive watches use a battery recharged by a solar panel hidden under the watch face. In the rare and discontinued Eco-Drive Duo series, the solar power was supplemented by an automatic quartz power source. One early model, called the Citizen Vitality, used the watch hands to drive a small electric generator, but was discontinued ...

  4. Citizen's Eco-Drive watch never needs a battery - Engadget

    www.engadget.com/2005-05-10-citizens-eco-drive...

    Of course, if you're trapped in a dimly lit cubicle all day, and still want a zero-pollution watch, you may want to consider a kinetic model instead — though the Eco-Drive does have a power ...

  5. 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 ...

  6. Citizen Eco-Drive Proximity watch notifies iPhone owners ...

    www.engadget.com/2012-09-01-citizen-eco-drive...

    The company's upcoming Eco-Drive Proximity watch has all the respectability of an analog steel timepiece, but it quietly syncs to an iPhone 4S (or newer) through Bluetooth 4.0. Miss a call, get a ...

  7. CES 2009: all the stuff (and more) - Engadget

    www.engadget.com/2009-01-12-ces-2009-all-the...

    CES 2009: all the stuff (and more) nilay patel. Updated Mon, Jan 12, 2009 · 3 min read. Although CES 2009 was undoubtedly smaller and perhaps a little more subdued than last year's HDTV-dominated ...

  8. citizen | TechCrunch

    techcrunch.com/tag/citizen

    Citizen Satellite Eco-Drive Watch Is Accurate Planet-Wide ... 2010/08/Citizen-World-Perpetual-AT-4.jpg">Citizen's featured mainstream new watch collection for 2010 is this Eco-Drive World Time ...

  9. Quartz clock - Wikipedia

    en.wikipedia.org/wiki/Quartz_clock

    The pulse-per-second output can be used to drive many kinds of clocks. In analog quartz clocks and wristwatches, the electric pulse-per-second output is nearly always transferred to a Lavet-type stepping motor that converts the electronic input pulses from the flip-flops counting unit into mechanical output that can be used to move hands.