Swiss Made: The (TTP 500) H3 watch is a Swiss made military watch.

Details: 
Movement: Swiss Ronda Quarzwerk with date
Glass: Sapphire Crystal
Crown: Screwed in
Case: Carbon fiber reinforced polycarbonate
Case Diameter: 40 mm
Water Resistant: Up to 10 bar (100 m/330 ft)

H3 Tritium gaslight lamps H3-GTLS