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History - mechanical watch
When Time Was Born: Renaissance-Period Clocks - Beauty, Rarity, History: The M.S. Rau Blog Blog from ArtfixDaily.com
China Icons on Twitter: "#DidYouKnow that #China invented the mechanical clock in 723AD? It was created by Yi Xing and would have looked something like this... https://t.co/X6w6mSG0Qg" / Twitter
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When Time Was Born: Renaissance-Period Clocks - Beauty, Rarity, History: The M.S. Rau Blog Blog from ArtfixDaily.com
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Inventions - Renaissance
History
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First-ever mechanical clock | THE SEIKO MUSEUM GINZA
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How clocks worked without a pendulum in the 14th century | Dr. Nosonovsky's Website and Blog
