Need help to identify lume material on vintage Seiko
Hi there!
I was hoping if any of you guys could help identify the lume material used on a vintage Seiko. Modelnumber is 6308-8000, and as seen on the dial it says "6308-8000L T", while on the back it says "TL".
I know Tritium has a very low half life, and while sealed in a watch and not ingested poses no harm. I just don't want to wear it. Any clues on the lume material?
Watch should be from around 1975-1986, so definately not LumiBrite... Were there any non-radioactive materials used between Tritium and Lumibrite?
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Lick the dial, if your tongue falls off in 6 months you'll know it's dodgy and not to wear it. 😆
Hopefully someone will come along soon and give you a proper answer mate. 👍🏻
Maybe tritium if I was a betting man. Your watch was in production from 1976 to 1988.
The lume used would be Tritium. I think pretty much all lume used prior to 1999 would be radio active to a small degree (apart from Radium). From then on manufacturers started using photo luminescent compounds