As far as I know there isn't evidence of even a single person being harmed by their radium watch, anywhere in history. That's kind of astounding. All we have is some fairly alarming dosage math that doesn't seem to square with real world experience. Maybe because a full-body dose as outlined in the safety data is a lot more deleterious than a point source mainly on the wrist. Or maybe people have been affected and it's just impossible to single out radium as the cause of some metastatic cancer. If that's the case, It would take huge advances in how well we understand cancer for a causal link to be established.
For now, it seems like the general precautions established long ago have done a good job at keeping people out of danger, so I'm not going to worry. It would be great if there was a second radium panic though, it might make some of my favorite watches actually attainable.