Seems some people have unrealistic expectations of tritium watch markers. The advertising for this watch probably adds to the confusion. Even T100 tubes (which this one doesn't have) aren't superluminova-impress-your-friends-in-the-bar-room bright. Not the intention. Tritium tubes were developed for military-use watches for reading in dark conditions, where you don't want to be noticed because it can get you killed. That said, if tritium is what you want, you'd be better off getting a Marathon navigator with an actual military pedigree.