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Useful: Will heat and cold affect a watch's accuracy?
Extreme temperature will also affect the accuracy of a mechanical watch, but not as much as other factors. One reason is that hot and cold cause the metal parts of a watch movement to expand and contract (though advances in metallurgy have made this less of a problem than in the past). Another reason is that heat and cold affect the viscosity of the oil that lubricates the movement, and thereby affect the movement's accuracy. |
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