Let's see your watch.

notmyusualuserid

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[QUOTE="BluesGuitarMart, post: For people with a one or two watch collectin though it’s not an issue.[/QUOTE]

I've rather more than one or two watches. Only one is a quartz.

Setting the time and date on the others isn't something I consider a time sink.
 

Happy Enchilada

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Tritium is a radioactive isotope, and like other lumes it has a finite lifespan.

Non-radioactive lumes are used in watches. They're less bright than radioactive lumes, and have branded names. Super Luminova is a popular one.


All my Sig pistols have "nite sites," which have small tritium vials that glow - one in front, two in back. They work fine.
 

JL_LI

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Tritium is a radioactive isotope, and like other lumes it has a finite lifespan.

Non-radioactive lumes are used in watches. They're less bright than radioactive lumes, and have branded names. Super Luminova is a popular one.
Tritium has a half life of 12.3 years. Half of it may be gone by then but half still remains. 24.6 years down the road a quarter of what you started with remains but it’s still not gone. Thousands of years down the road the amount that remains may be vanishingly small but some will still remain. When you’re down to one atom, it’s impossible to know when it will decay leaving behind an atom of He3.

Band name alert: Half Life
 
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BluesGuitarMart

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[QUOTE="BluesGuitarMart, post: For people with a one or two watch collectin though it’s not an issue.

I've rather more than one or two watches. Only one is a quartz.

Setting the time and date on the others isn't something I consider a time sink.[/QUOTE]

Yeah that was kind of my point but I might have phrased it badly. For me setting a watch time and date is a waste of time when I can have a quartz that is accurate to 20 seconds a year without being worn, but I totally understand why others don’t mind it as really it’s not much time in the scheme of things.
 
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El Tele Lobo

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View attachment 876132





Back in the 60s and 70s Seiko was fighting hard to be considered a time piece manufacture of the highest quality. The Swiss and the French were working hard to exclude them from the club. Seiko built some great watches in that period. There are some good accounts of this battle on the interwebs.

Oh man...I really like that. Do you have a model number?
 

notmyusualuserid

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Tritium has a half life of 12.3 years. Half of it may be gone by then but half still remains. 24.6 years down the road a quarter of what you started with remains but it’s still not gone. Thousands of years down the road the amount that remains may be vanishingly small but some will still remain. When you’re down to one atom, it’s impossible to know when it will decay leaving behind an atom of He3.

Band name alert: Half Life

Yes, I understand radioactive decay. After a couple of half life cycles a tritium tube will also have only a quarter the luminescence it started out with.

https://www.fratellowatches.com/you-asked-us-which-watches-glow-in-the-dark-best/https://www.fratellowatches.com/you-asked-us-which-watches-glow-in-the-dark-best/

Which was my point. :)

Radium has a much longer half life - ~1500 years. My grandfather's pocket watch, which is over a century old, still glows very nicely in the dark thanks to its radium lume.
 

BigDaddyLH

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Yes, I understand radioactive decay. After a couple of half life cycles a tritium tube will also have only a quarter the luminescence it started out with.

https://www.fratellowatches.com/you-asked-us-which-watches-glow-in-the-dark-best/

Which was my point. :)

Radium has a much longer half life - ~1500 years. My grandfather's pocket watch, which is over a century old, still glows very nicely in the dark thanks to its radium lume.

My point was that I'll be dead by the time my tritium watch doesn't glow enough.
 

Flaneur

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After 11 pages of submissions, I think it's OK to say, that we are a community who appreciate Seiko watches. Here's mine.

IMG_20210711_233808913.jpg
 




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