There have been some controversial discussions lately and before here in the vintage forum, about the dangers of wearing (or even worse, working on) watches with dials containing radioactive luminous paint.
Some of the lesser concerned pointed out, that even bananas are radioactive, thus forgetting, that they only contain naturally occurring radioactive material in the form of potassium-40. Exposure to this kind of radiation is approximately 1% of the average daily exposure to general radiation, officially defined as BED, or 100 BED (Banana Equivalent Doses). In the case of those watch dials, we talk about radium (radium-226), with a horrible half live period of over 1600 years.
That all reminds me of an incident in the UK some time ago. During a traffic control, carried out in connection with illegal transports of radioactive material, a bus trigged an alarm passing a control barrier in a market town in the county of Norfolk. To make a long story short, it was soon discovered that it was the bus driver (coincidentally not at all unknown to this forum) wearing one of his many vintage wrist watches.
Whatever, I have spared nor time nor effort to explore these things in more depth.
My video is now available on YouTube: