Smith & Wesson Tritium Watches represent a popular alternative to conventional watches. Once you have owned a tritium watch, you will wonder how you did without one for so long.

The nighttime visibility of tritium watches is independent of external power. The glow that makes these watches so unique is generated by the radioactive decay of tritium. Tritium is Hydrogen with 1 proton and 2 neutrons. Ordinary Hydrogen has only one proton and no neutrons . The tritium emits beta particles when it decays.

These beta particles are very low energy and are unable to penetrate the capsules in which they are sealed. The beta particles cause a phosphor coating inside the capsules to emit a glow, which can be readily seen at night.

Even with a dead battery, these watches will glow for up to 25 years. They come in several styles and watch band choices.If you can't choose, buy two. You'll thank yourself.