Tritium Watches - They Glow in the Dark

Tritium is both plainly occurring and man-made. It is very beneficial for watch dials and other displays that can be read at night.

Tritium is a radioactive isotope of the element hydrogen. The chemical emblem for hydrogen is H. Tritium, emblem H3, occurs plainly in the atmosphere from the reaction of cosmic rays and air molecules. It is also produced in nuclear reactors during output of electricity. Tritium is composed of an atom of hydrogen with one proton and 2 neutrons giving it an atomic weight of 3.

Nuclear Reactor

Tritium has a half-life of about 12-1/2 years. This means that 1/2 of the customary number will decay in 12-1/2 years. While this half life is relatively brief in the world of radioactive materials, this gives tritium some beneficial properties. Tritium when encapsulated in watches, exit signs, aircraft gauges and other applications, will glow for up to 25 years.

The radioactive decay of tritium is not perilous to man in these applications because it emits a very weak beta particle that can be stopped by even a piece of paper. Since the tritium is encapsulated in small packets made of glass or plastic, radiation doesn't reach the skin.

The benefits of this decay is a piquant display that can really be read at night. The light emitted is not illustrated during the day, but at night, the glow is very visible. This makes tritium very favorite for night visibility applications. Pilots, the military, police and others like the visibility without having to press any buttons to read the display.

Several watchmakers are now using tritium displays for their displays. They have displays that far exceed the brightness of proper luminescent watch dials that require "charging" by exposure to light. These have come to be very favorite watch styles with the general public as well as military, pilots and law enforcement.

Tritium watches come in many styles and prices. There is a style for just about anyone. Now you can tell the time in the dark and be in style at the same time.

Tritium Watches - They Glow in the Dark