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Here is an interesting article I found a while ago on this subject by a vintage watch collector who took some measurements of his radium dial watches using a Ge
by Jeema101 6y ago
Here is an interesting article I found a while ago on this subject by a vintage watch collector who took some measurements of his radium dial watches using a Geiger counter:
https://www.vintagewatchstraps.com/luminous.php https://www.vintagewatchstraps.com/luminous.php
The dose rates that he measured varied considerably depending on the watch. One very radioactive one was about ~30 times the background dose rate with the glass off and in very close proximity. Probably not something you'd want to wear on your wrist every day...
- s1artibartfast 6y agoI think it would still be pretty safe to wear every day Whole body Ambient radiation dose is about 0.3 rem/year. You could assume your wrist is about 1% of this or 0.003 rem. 30x would be 0.09 rem. The OSHA safety limit is 75 rem per year to the hands of workers, which is about 800x higher than the watch.