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  2. Automatic watch - Wikipedia

    en.wikipedia.org/wiki/Automatic_watch

    The next development for automatic watches came in 1948 from Eterna Watch. To wind a watch effectively, one of the chief requirements of a rotor is heft. Until this point, the best bearing used in any watch was a jewel bearing, which perfectly suits the small gears of a watch. A rotor, on the other hand, requires a different solution.

  3. Movado Ermeto watch - Wikipedia

    en.wikipedia.org/wiki/Movado_Ermeto_watch

    Watch Museum of Le Locle (Switzerland). A Movado Ermeto watch was a pocket/purse watch manufactured between 1926 and 1985 by Movado in La Chaux-de-Fonds (Switzerland). [1] The model, a joint creation between case maker Huguenin Frères and watch maker Movado, was introduced in 1926. It won the Grand Prix at the 1929 Barcelona International ...

  4. Mechanical watch - Wikipedia

    en.wikipedia.org/wiki/Mechanical_watch

    The hand-winding movement of a Russian watch. A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves.

  5. New Orleans Teen Designs Stroke-Detecting Smartwatch ... - AOL

    www.aol.com/orleans-teen-designs-stroke...

    The watch design is patent-pending, and the goal is to make it more affordable and also more elder-friendly than a typical smart watch. The watch sensors will detect signs of a stroke — heart ...

  6. Motion detector - Wikipedia

    en.wikipedia.org/wiki/Motion_detector

    A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

  7. Automatic quartz - Wikipedia

    en.wikipedia.org/wiki/Automatic_quartz

    Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [1] (as used in automatic mechanical watches) to generate electricity with a piezoelectric quartz crystal as its timing element. Such movements aim to provide the advantages of quartz without the inconvenience and environmental impact of ...

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