Kalle Slaap from Chronoglide in the Netherlands addresses the health concerns associated with radioactive luminous pastes like radium and tritium in vintage timepieces. Drawing on his professional background in radiation safety, he explains that the primary risk involves inhaling airborne dust particles from degrading paste rather than the radiation emitted through the watch crystal. He recommends containing these materials with translucent varnish to ensure safety during handling and restoration. This technical overview helps collectors understand how to properly manage radioactive components while preserving the historical integrity of their watches.
