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  • H4-HWD-TI-G-Y-KW-GGYG

    Hazard 4 Heavy Water Diver HWD BlackTie Yellow GMT Silver

    3 items left

    Hazard 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 button pushing, or battery to exhaust. They are also feather-light. Tritium lights are usually used only for critical applications like military compasses, and night-sights; we nevertheless source them, since our watches are used by those for whom timing can determine survival/success or catastrophe.

    Features of Hazard 4 HeavyWaterDiver BlackTie Yellow GMT

    • High water resistance feature set; depth rating of 300 m/990'
    • Ronda 515 Quartz (battery powered); standard battery life on our watches is about 2-2.5 years from the day it is installed
    • Battery type: 371, silver oxide (contains 0% mercury)
    • Titanium grade: 2
    • Self-contained everglow tritium-vial lamps (tritium has a half-life of 12 years, meaning that in 12 years, it will be half as bright as it is now)
    • Tritium vials are not inset but 80% above the face surface; This makes them visible from the edges not just from above
    • Titanium case is light, strong, and hypoallergenic
    • Large, substantial, 50 mm high-vis design
    • Aggressively knurled unidirectional bezel
    • Bezel has tritium marker in "12" porthole
    • Scratch-resistant sapphire crystal glass
    • Crystal interior is anti-reflective coated
    • Machined bezel markers won't scratch off
    • Screw-down case-back and crown
    • The crown is large, grippy, and easy to turn
    • Big, high-vis, 3D military stencil-cut numerals
    • Unique 24-hour military time scale is integral
    • Angled minutes inner-dial for better visibility
    • Unique, user-service fast-change strap pins
    • Boldly styled, broad, super legible hands
    • Eye-catching retail graphic case-insert
    • Easy strap changes w/ screw-in pins; use Torx 6 screwdriver/bit to remove strap (not included)
    • Moisture wicking map texture under the rubber strap, combined w/ relief trench & many buckle holes keep the wrist dry
    • A selection of straps/bracelets coming soon

    What's Included:

    • Comes mounted with custom T.P.R. band
    • 1x military-grade thermoformed travel case

    Specifications

    Case Material Titanium (bead-blast)
    Case Finish Natural or P.V.D. Black
    Case Diameter 50 mm
    Case Thickness 15 mm
    Strap Horn Width 24 mm
    Depth Rating 300 m/990'
    Movement Ronda 515 Quartz (battery powered)
    Date Window Position at 4 o'clock
    Product Weight ~3.8 oz (10.9 oz w/ case)
    Design Simi Valley, California - In-House Team.
    Manufacturing Swiss Movement

     

    The GMT models include a daylight ring plus an additional hand for tracking a second time zone.

    >> Heavy Water Diver Instruction Manual
    >> Heavy Water Diver Dive Bezel How-To

     


    Hazard 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 button pushing, or battery to exhaust. They are also feather-light. Tritium lights are usually used only for critical applications like military compasses, and night-sights; we nevertheless source them, since our watches are used by those for whom timing can determine survival/success or catastrophe.

    Features of Hazard 4 HeavyWaterDiver BlackTie Yellow GMT

    • High water resistance feature set; depth rating of 300 m/990'
    • Ronda 515 Quartz (battery powered); standard battery life on our watches is about 2-2.5 years from the day it is installed
    • Battery type: 371, silver oxide (contains 0% mercury)
    • Titanium grade: 2
    • Self-contained everglow tritium-vial lamps (tritium has a half-life of 12 years, meaning that in 12 years, it will be half as bright as it is now)
    • Tritium vials are not inset but 80% above the face surface; This makes them visible from the edges not just from above
    • Titanium case is light, strong, and hypoallergenic
    • Large, substantial, 50 mm high-vis design
    • Aggressively knurled unidirectional bezel
    • Bezel has tritium marker in "12" porthole
    • Scratch-resistant sapphire crystal glass
    • Crystal interior is anti-reflective coated
    • Machined bezel markers won't scratch off
    • Screw-down case-back and crown
    • The crown is large, grippy, and easy to turn
    • Big, high-vis, 3D military stencil-cut numerals
    • Unique 24-hour military time scale is integral
    • Angled minutes inner-dial for better visibility
    • Unique, user-service fast-change strap pins
    • Boldly styled, broad, super legible hands
    • Eye-catching retail graphic case-insert
    • Easy strap changes w/ screw-in pins; use Torx 6 screwdriver/bit to remove strap (not included)
    • Moisture wicking map texture under the rubber strap, combined w/ relief trench & many buckle holes keep the wrist dry
    • A selection of straps/bracelets coming soon

    What's Included:

    • Comes mounted with custom T.P.R. band
    • 1x military-grade thermoformed travel case

    Specifications

    Case Material Titanium (bead-blast)
    Case Finish Natural or P.V.D. Black
    Case Diameter 50 mm
    Case Thickness 15 mm
    Strap Horn Width 24 mm
    Depth Rating 300 m/990'
    Movement Ronda 515 Quartz (battery powered)
    Date Window Position at 4 o'clock
    Product Weight ~3.8 oz (10.9 oz w/ case)
    Design Simi Valley, California - In-House Team.
    Manufacturing Swiss Movement

     

    The GMT models include a daylight ring plus an additional hand for tracking a second time zone.

    >> Heavy Water Diver Instruction Manual
    >> Heavy Water Diver Dive Bezel How-To