Immersion Dive Watches or professionals. Both military and sporting type used by professional divers around the world. Of all the noteworthy characteristics of helium valve, sapphire crystal, steel or rubber strap. Resistance to water between 200 m and 1000 m
-Valvula-de-Helio-T0139G.jpg&w=165&h=235 "Diving Watch Tauchmeister Professional Diver 60ATM WR (600M) Helium-Safe T0139G")
