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Difficult To Say For Sure...

In Response To: How long does luminova last? ()

: I'm wondering how long the luminova lasts in an
: Omega before it won't glow in the dark
: anymore. I have an old Swiss Army watch
: whose luminova (if that's what was used in
: it) would no longer retain a glow after 3 or
: 4 years..

Your old Swiss Army watch probably had tritium in it. Tritium only last 10-12 years on average before it decays and no longer glows, so if yours was bought used then perhaps this was the reason it faded so quickly.

Regarding luminova, it is simply a phototropic pigment. There's nothing radioactive about it (like tritium) that would cause it to decay over time. Most manufacturers say it will last indefinitely, while I've seen a few who say it will last "at least" 25 years. Right now I don't think there's a definitive answer, other than to say it will last at least twice as long as tritium. I hope that helps.

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How long does luminova last?

Difficult To Say For Sure...

My mark IV glows like a torch

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