Flashlight Wars

June 27th, 2006

What makes that watch glow? Could be Tritium. A rare isotope, it’s most significant use is as a component in the triggering mechanism in thermonuclear (fusion) weapons. It’s secondary use is the illumination of watch faces and hands. Risky business for the people applying it, not to be ingested or inhaled, not such a big deal to the watch wearer. Could be Superluminova®. A photosensitive paste placed on the hands of watches and dials that is very luminous after first contact with light (sun, lamp or police spot light), but fades after some time depending on the mix. It comes in little containers like KoolAid®, but does not taste so sweet and cannot trigger a thermonuclear weapon. In the watch industry we refer to these two glow bugs as a T-dial or L-dial. Old Trit. dials had T-Swiss Made-T on the dial, so you can pick them out of your collection and show people (you might find someone who cares!). Super Ls don’t label too much, but are far less dangerous for the boys at the bench. There are some long-winded debates on what dial is better with what substance and I really don’t take sides on which is a better luminous product. I prefer Superlumis because they are safer for all involved, I am not worried about prolonged hours in the dark and fading, because I sleep, you should too. As for the guys in the military I am all for Tritium gun tips and watch dials if it helps them on the job and keeps them safe. CTWG

Entry Filed under: Just In, Watches