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Fairdinkum2
1584
Jan 19, 2018
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Smart idea to replace the metal band with leather. I am doing that with several of the watches in my collection, some of which weigh in at 11 ounces! I have also been looking at T-100 watches. I think I'm going to go for a Swiss quartz movement.Something like Armorlite. Lighter, accurate. I was told the other day that many countries, including those in Europe will only allow T-25 tritium, since it's radioactive. Only U.S. market permits T-100. Not sure how true that is, but interesting.
Jan 19, 2018
PetrosD
3702
Jan 19, 2018
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Fairdinkum2I also have a T25 tritium watch. It's not worth it. Personally, if I want tritium I would only pick a watch with T100. Superluminova is far brighter than T25 and, even though it doesn't last through the night, the ones I have are better than my T25.
Jan 19, 2018
Cloaca
1906
Jan 20, 2018
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PetrosDMy concern about lume is not so much the brightness, but having a steady, non-dimming illumination. I wonder is T100 might be too bright to use in a movie theater or a classical concert hall? Is T25 not bright enough to read, or just not as blow-your-eyes-out cool from a watch nerd perspective?
An imperfect analogy, but when I used to backpack in the mountains you needed a headlamp. In general, in an above-the-timberline area, you want the dimmest headlamp, since you just need a little help when the moon is not around. You don't want to blast out your night vision completely because you needed to look back and forth between places you lit up and the rest of the landscape. But all the headlamps only advertised how they were so much brighter than the competition, not whether their level of illumination was appropriate.
Jan 20, 2018
PetrosD
3702
Jan 20, 2018
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CloacaSteady, non-dimming lume is best from tritium. The T100 is not even as bright as a good Superluminova, but obviously it will last through the night. The T25 that I have is quite dim and, in my opinion, about the same as a poorly lumed watch, other than the weak lume lasts the night.
Of course, what good is a lume discussion without lume shots! The outer watches are Seikos (Alpinist on the left, SKX on the right). The inner watches are T100 (left) and T25 tritium. The first picture was taken right after charging the Seiko lume with an LED flashlight for several minutes. The second picture was taken 30 minutes later, Nothing beats T100 for all night brightness and readability. Seiko has great lume, but it didn't last. Perhaps if the Seikos were in full sunlight all day they would last longer, but they started out brighter than the tritium. But it's not how you start, it's how you finish.
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Jan 20, 2018
PetrosD
3702
Jan 20, 2018
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PetrosDZoomed in, the camera picks up the lume better. After nearly an hour, the SKX had dimmed to the same brightness as the T25, so I just zoomed in to show the difference between T100 and T25. Seeing them in person, there is no doubt that of all the lume options on the market, T100 is the best and most consistent, at least until the tritium decays. The picture I posted early in this thread is pretty representative of how it looks in person. Not overly bright, but easy to read.
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Jan 20, 2018
Cloaca
1906
Jan 20, 2018
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PetrosDThanks, this is really helpful, especially seeing it in comparison to the Seikos.
Jan 20, 2018
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