[MrSlacker]

I have a pretty nice Tissot watch. However, the glow in the dark material on the arms (not sure if im using correct names) doesn't really glow in the dark. Sometimes it glows when there is plenty of light, but doesn't glow in the dark. It has been like that since I got it a year ago, but never bothered to do anything about it.
Is there a way to "charge" it? Should I contact Tissot?

 

[Edwood]

You started another watch thread, after posting in the already existing one?

http://www.head-fi.org/forums/showthread.php?t=71892

At least your thread title could be more specific.

-Ed

 

[marvin]

Quote:

Originally Posted by MrSlacker /img/forum/go_quote.gif I have a pretty nice Tissot watch. However, the glow in the dark material on the arms (not sure if im using correct names) doesn't really glow in the dark. Sometimes it glows when there is plenty of light, but doesn't glow in the dark. It has been like that since I got it a year ago, but never bothered to do anything about it. Is there a way to "charge" it? Should I contact Tissot?

It's probably superluminova. After fully charging, it'll only give usable light for about 30 minutes, less depending on age. Brightness drops very quickly, exponential decay curve style.

 

[MrSlacker]

Quote:

Originally Posted by Edwood /img/forum/go_quote.gif You started another watch thread, after posting in the already existing one? http://www.head-fi.org/forums/showthread.php?t=71892 At least your thread title could be more specific. -Ed

I think that thread is for showing off your watch and then discussing it. I made a new one so that one doesnt go WAY off topic.

Quote:

Originally Posted by marvin /img/forum/go_quote.gif It's probably superluminova. After fully charging, it'll only give usable light for about 30 minutes, less depending on age. Brightness drops very quickly, exponential decay curve style.

How can I see if mine is superluminova?
This link explains well how it works http://www.reactorwatch.com/nvd.html

 

[marvin]

Quote:

Originally Posted by MrSlacker /img/forum/go_quote.gif How can I see if mine is superluminova? This link explains well how it works http://www.reactorwatch.com/nvd.html

Put watch under bright light.
Leave for a few minutes.
Bring into dark area.

If it fades after a few minutes, it's superluminova. I don't think recent Tissot watches use other lume compounds.

If it doesn't fade after a few minutes, it's tritium.

If it never charges, or doesn't glow in the dark, I'd guess it's defective.

Oh yeah, "glow in the dark material on the arms (not sure if im using correct names)" is called lume.

 

[GAD]

Tritium is a radioactive gas that always stays illuminated with a decay time of about 7+ years. Tritium does not need to be "charged" with light light superluminova.

Different watches have different "strengths" of lume depending on the material used, the amount of material used, and the age of the material. Here's a pretty cool thread from another forum showing different watches over the course of about an hour. The center watch is luminova - the outside watches are tritium.

http://forums.watchuseek.com/showthread.php?t=81978

GAD

 

[wakeride74]

You need a new watch

I bought a Special Ops Black Hawk recently and this is the best watch I have ever owned... I use the light features all the time, very cool!

 

[applevalleyjoe]

Quote:

Originally Posted by GAD /img/forum/go_quote.gif Tritium is a radioactive gas that always stays illuminated with a decay time of about 7+ years. Tritium does not need to be "charged" with light light superluminova. Different watches have different "strengths" of lume depending on the material used, the amount of material used, and the age of the material. Here's a pretty cool thread from another forum showing different watches over the course of about an hour. The center watch is luminova - the outside watches are tritium. http://forums.watchuseek.com/showthread.php?t=81978 GAD

Wow! Great link. Thanks.

 

[Quaddy]

gotta love tritium

 

[rb67]

Tritium is great. It doesn't glow quite as bright as freshly charged superluminova but I'd rather have it glowing all the time than brightly just for a few minutes.

 

[Quaddy]

Quote:

Originally Posted by rb67 /img/forum/go_quote.gif Tritium is great. It doesn't glow quite as bright as freshly charged superluminova but I'd rather have it glowing all the time than brightly just for a few minutes.

x2 my tritium navy seals watch has glowed since 97' and it doesnt seem to depreciated or degraded in brightness, the 10 year glow warranty is now over, but this thing will probably carry on for god knows how much longer.

 

[GAD]

Tritium has a predictable half life - I think it's 12 years. They use it in gun sights and the sights need to be replaced after about that long.

GAD

 

[Quaddy]

Quote:

Originally Posted by GAD /img/forum/go_quote.gif Tritium has a predictable half life - I think it's 12 years. They use it in gun sights and the sights need to be replaced after about that long. GAD

i will let you know, in a few years if its still behaving!

 

[GAD]

Quote:

Originally Posted by Quaddy /img/forum/go_quote.gif i will let you know, in a few years if its still behaving!

It's a date.

GAD

 

[mrarroyo]

FYI, Quote:

Tritium is hydrogen with two extra neutrons. That is, the nucleus is one proton and two neutrons instead of just a plain proton like normal hydrogen. Deuterium (see below) is hydrogen with only one extra neutron. Tritium is radioactive, while deuterium and hydrogen are not. Tritium has two main uses: Thermonuclear weapons and glow in the dark