HAZARD 4 Heavy Water Diver(TM) Snowfield: Titanium Tritium Dive-Watch - B Self-contained everglow tritium-vial lamps; Titanium case is light, strong, and hypoallergenic; High water resistance feature set. Tritium vials are not inset but 80% above the face surface; this makes them visible from the edges not just from above. Large, substantial, 50 mm high-vis design; Scratch-resistant sapphire crystal glass & crystal interior is anti-reflective coated. Moisture wicking map texture under the rubber strap, combined w/ relief trench & many buckle holes keep the wrist dry. WHAT'S INCLUDED: comes mounted with custom T.P.R. band, 1x military-grade thermoformed travel case.