Let's assume for the moment that is true. 5% from even a large watch collection, which then gets dissipated into the ambient air, must be negligible. However, I am going to stop strapping my watch under my nose while I sleep, just as a precaution.

 

I was curious, does this Omega parts package indicate that the hands have Radium?

 

Yep!

 

Does that make them more desirable?

 

Don't worry about it. Just don't play around with the lume.
Or lick any lume bushes like the radium girls way back....

https://en.wikipedia.org/wiki/Radium_Girls

 

Unfortunately they are for a Seamaster 321 chronograph, not the Speedmaster 321.