In recent years, the popularity tritium gas tube lighted dials and hands has increased dramatically. Unfortunately, most do not live up to critical needs and expectations. MTM was commissioned to engineer a battle tough, tritium gas tube lighted model that could withstand the rigors of battle, both on land and at sea. The BLACK WARRIOR fills that need perfectly. The movement is Swiss made and the dial is made of a carbon fiber compound similar to that used by NASA. The sapphire crystal, along with the 316L solid stainless steel case, band and bezel and locking screw down crown, provide the BLACK WARRIOR with true 200 meters water resistant dependability in a sea of uncertainty.