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The place for discussing 1930-1985 Heuer wristwatches, chronographs and dash-mounted timepieces. Online since May 2003.
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I would worry

about UV light causing medical problems such as increase exposure leads to early eye cataracts and early aging of your skin.. ie wrinkles..

And yes, it might lead to some discoloration of the dial and markers..but I would argue that your eyes and skin are more important..

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