Hazard 4 Heavy Water Diver Blacktie "A" Wristwatch H3 scratch resistant sapphire crystal

scratch resistant sapphire crystal

with those for hours and minutes thermally blued

This timing function is separate from the main time-telling function of the watch can be used to record events and operated by two pushers on either side of the crown

explorers and trendsetters

Hazard 4 Heavy Water Diver Blacktie "A" Wristwatch H3 scratch resistant sapphire crystalHazard 4 watch hands & indicators glow continuously (night or day,) powered by an unusual, government regulated technology that combines hydrogen 3 gas (tritium H3), glass tubes, and phosphors into self contained mini lamps (expertly Swiss made in many colors.) Tritium bulbs don't charge by battery, sun, or flashlight, unlike other watches using simple luminescent paint or battery run film. They don't fade overnight like those paints, and require no