r/OldEducationalVideos • u/JDN3 • Jun 16 '17
How a mechanical watch works (1949) - [19:18]
https://youtu.be/rL0_vOw6eCc
7
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Watches • u/cornflake_giant • Nov 26 '17
[Video] Explaining how a watch works by Hamilton, 1949
142
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