Luminox that doesn't glow?

[Bauertime]

I did a repair on a friends Luminox watch and when I finished I wanted to see how bright these watches glow. So I shined a flash light at it for a few seconds and walked into a dark room and was shocked to barely be able to see it. I've got one jewel wonders from 1970 that glow ten times brighter. What gives, is it a fake, or the fact that it my be 10 years old be the answer?

[Chopin]

Does it have luminova or tritium tubes ? Luminova shines much brighter but wears out (and has to charge in the light), tritium tubes are weaker but don't need to recharge. They also have a half-life of about 10-20 years or so...

Don't know if there are fakes of Luminox out there, haven't seen any but you never know...

[Bauertime]

I'm not sure, I've given it back to him. It was a Night Hawk and after more research, some people say that they don't glow very brightly,  but they will glow for a very long time. And you need to let your eyes adjust to the darkness first. Anyway thanks for the input.