Tritium, or hydrogen-3 is a rare and radioactive isotope of hydrogen. Yes, unlike the "grow in the dark" lumes, it grows by itself! Its half-life is 12.32 years, so by then it might not be as bright as it is now, but it is handy to have something that shines all the time.
"Wait, so is it radioactive?! Is it safe???" Well, let me quote Wikipedia "it is not dangerous externally (its beta particles are unable to penetrate the skin), but it can be a radiation hazard when inhaled, ingested via food or water, or absorbed through the skin." So, don't eat the Tritium!
Brand Name: CARNIVAL
Model Number: 8638
Feature: Date / Day-Date
Case Diameter: 39mm
Case Thickness: 11mm
Case Material: Stainless Steel
Water Resistance Depth: 3Bar / 30M
Bracelet/Strap Type: Metal Bracelet
Clasp Type: Push Button Hidden Clasp
Boxes & Cases Material: Paper
Model Number: 8638
Band Width: 21mm
Case Shape: ROUND
The package came well packaged. The watch corresponds to the description. The communication with the seller was perfect. Seller recommended!!
Часы пришли очень быстро. Молодцы! Но браслет положили бракованный. Мелочь- сломана шпилька с пружиной( Браслет регулируется по длине легко. Но сам браслет не понравился - под замену! Буду искать ремешок. На циферблате нет значка "омега" как на рекламе. Тритий светит красиво, не слишком ярко. Светят в темноте здорово. Не сильно и не слабо!
For a long time I wanted such a watch, a couple of years exactly in the basket lay. And now the moment has come, decided to order all the same. It's been two weeks. Before that I went with Casio ef-540d, so I will compare them relatively. The watch is light enough, only 115 grams (Casio almost 180). Bracelet creepy rattle. It is as if it is not stamped, but it is not completely cast. Here is the central part of the bracelet where the polished inserts go, it is not one-piece, and it consists of three cast elements. It turns out that the links are like cast, but due to the fact that they are crushed into small elements, the bracelet grams like stamped. The clasp is also in my opinion more convenient than a classic clasp, not a butterfly like here, because the butterfly does not have a small adjustment of the size of the bracelet, you can adjust only by cleaning the links. Next second hand, does not fall into Division (photo 3). On the glass there is a blue shimmer, so the Enlightenment looks like there is (Photo 4). I will. Pro glass material, drop test don't pass, so it is not clear sapphire it is in the end or not, it is possible that because of the anti-glare, a drop is not going to the sphere. On the dial there are no questions, what kind of heat is not found, everything is smooth. Backlight (actually for what you buy such a watch) of course cool, in a slightly touched room it seems that it does not exist at all (unlike phosphor, in the touched room you can see a greenish shade), but in the dark it glows bright enough. In general, the clock is on a solid four, there are some moments that all the same give out the cheap hours, but for an unsophisticated buyer is quite suitable.
I got a watch, heavy, made well, sit on my hand well. A little rattles the strap, the precision of manufacturing a little lame, but in general not bad. Glow in the dark, not as bright as in the photo, but it will be visible at night. About the accuracy of the move I can not say yet, but I think not worse and not better than others of this type, plus or minus a couple of seconds a day. Delivery month and 6 days to Voronezh, originally calculated 2 weeks, but the Crown was twice as long as it was warned. Track is tracked all the way. The box is packed well, outside of the navel and inside the pad is also wrapped. The clock in the film, the chances that they will be scratched or broken on the way at least. I took for 4800, in principle for this price tag I do not see any shortcomings. Seller recommend