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  2. Poljot - Wikipedia

    en.wikipedia.org/wiki/Poljot

    Today's owner of the brand, Volmax (based in both Moscow and Switzerland), is the only authorized company allowed to use Gagarin's name and likeness in watch production. Gagarin received his 17-jewel watch with a manual-wind Poljot movement when he graduated from the Soviet air force flight school in 1957.

  3. Mechanical watch - Wikipedia

    en.wikipedia.org/wiki/Mechanical_watch

    A 17 jewel watch has every bearing from the balance wheel to the center wheel pivot bearings jeweled, so it was considered a 'fully jeweled' watch. [18] In quality watches, to minimize positional error, capstones were added to the lever and escape wheel bearings, making 21 jewels.

  4. Chinese standard movement - Wikipedia

    en.wikipedia.org/wiki/Chinese_standard_movement

    The project to establish the Standard watch originally aimed to make a steel-cased 17 jewel watch available to, and within the means of, almost any worker in the People's Republic of China. The often elaborate case-backs and signed crowns of many vintage Standard watches are a testimony to the pride of the local enterprises that built them.

  5. Hamilton Watch Company - Wikipedia

    en.wikipedia.org/wiki/Hamilton_Watch_Company

    The Hamilton Watch Company was housed on a 13-acre (53,000 m 2) complex in Lancaster. Hamilton took possession of Aurora Watch Company's machinery shortly after incorporation. [citation needed] The first watch made under the Hamilton name was an 18-size 17-jewel pocket watch in 1893.

  6. Jewel bearing - Wikipedia

    en.wikipedia.org/wiki/Jewel_bearing

    Manufacturers traditionally listed the number of jewels prominently on the watch face or back, as an advertising point. A typical fully jeweled time-only watch has 17 jewels: two cap jewels, two pivot jewels and an impulse jewel for the balance wheel , two pivot jewels and two pallet jewels for the pallet fork , and two pivot jewels each for ...

  7. List of ETA Movements - Wikipedia

    en.wikipedia.org/wiki/List_of_ETA_Movements

    ETA Mechanical movements Caliber Product Line Winding Diameter () Height () Jewels Frequency Running time () VPH Hz; 2671 [1]: Mecaline automatic 17.2 4.8 25

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