Wearing Radium.

A certain percentage of older watches on Ebay look like they spent a decade up Walken's butt. Especially those from Central and Eastern Europe.
One advert claimed the watch had been recently cleaned , by bathing it in gasoline.
I suspect many such watches were salvaged from mass graves in the old Soviet states.

PS the Strontium batteries found in some Soviet equipment are deadly as a heart attack.
One thief stole the depleted uranium shielding from such a battery in an abandoned weather station.
He didn't even make it back to the gate he had forced. He collapsed and died while still trying to drag away his booty.
In another incident a hunter noticed there was an area of a pond where there was no ice. he dredged up a discarded military battery pack which he found was putting off a good deal of heat. He took it home to help heat his home and the next day he and his family were found stone dead.