Luminox is a Swiss watch brand and its designs are notable for containing tritium inserts, providing permanent luminescence. The brand makes timepieces for various military groups with custom insignias and designs. Among these are the US Coast Guard, US Air Force, United States Navy SEALs, and a variety of other special forces and ems teams worldwide. The brand has since expanded to over 30 countries. Among the more popular watch models are those designed using visual elements of the fighter jets made by Lockheed Martin.