The Navy SEAL chronograph watch by Luminox has a 45 mm case and mineral crystal. The case is made of Carbonox a carbon compound material that is six times lighter than steel as well as shock and scratch resistant. The Luminox watch comes with their signature light technology which provides self-powered illumination lasting 25 years with no external light source needed. The Navy SEAL chronograph watch has the famous SEAL mantra ‘The Only Easy Day Was Yesterday’ on the dial in red. The watch has a black dial with red accents and a black rubber strap.