Other companies today in Switzerland are using micro gas tubes with tritium inside. Plus the amount of tritium on your Slytech isn't at a level which is harmful. Otherwise how could you wear it in the first place.
Modern technology has allowed for the parts to be produced with precision. Which in turn has allowed these stunning timepieces to be created. The rare violins have been brought up & I still find it amazing the craftsmanship that was able to be produced back in the day. Even the ultra complicated per