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HWD - BlackTie

titanium tritium dive-watches

Hazard 4® Heavy Water Diver® watches glow continuously using self-powered tritium (H3) Swiss mini-lamps like in your pistol night sights - won’t fade overnight like luminescent paint. A Swiss-movement guarantees reliable accuracy. Built with 100% titanium, this 50mm large watch is only 1/2 the weight, but double the strength of a steel watch. A proven dive watch, it is water resistant to 300M / 990 FT depth. The unique, bold, military styling features easy-to-read numerals and our exclusive integrated 24-hour scale. The submarine-inspired aesthetics carry into the precision, 60-click uni-directional dive bezel topped with tritium zero indicator and the easy-turn screw-down crown. The face numerals are 3D stencil 2-layer design which along with angled chapter ring makes it not only tactical, but also a sophisticated timepiece suitable for the office or formal event. Available in an unprecedented range of tactical and urban oriented colors/finishes - they come equipped with a variety of straps and bracelets. Used in the most extreme environments by special forces, explorers, and professionals worldwide, it won’t let you down and makes an unforgettable formal present.

>> Heavy Water Diver Instruction Manual

>> Heavy Water Diver Dive Bezel How-To


Availability: In stock


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_ 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
_ 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

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

Additional Info

Additional Info

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 Long Beach, California - In-House Team.
Manufacturing Swiss Movement


Customer Reviews (5)

Best Watch EverReview by Eugene
This is a "next level" watch for me I have never owned one this nice. I haven't worn one on my wrist in a couple years looking for the ONE. This is IT! (Posted on 8/16/2018)
QualityReview by Percy
Looks chunky , masculine and never fails to draw compliments (Posted on 1/28/2017)
ImpressiveReview by Dive
I've been wearing this watch for about a month now. Very easy to read time, tritium tubes glow beautifully in dark and under water. One of those watch that stands out on your wrist! Very sexy. (Posted on 2/11/2016)
Retired Deputy SheriffReview by John A.
The watch is excellent quality and style and functions great. (Posted on 9/2/2015)
Mr.Review by Chris T.
Initial impression is that it is very high quality. I own several dive watches, but this may become my favorite. Definitely worth the wait. (Posted on 8/31/2015)

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Product Questions

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What size bit is used to change the watchband? I am having trouble switching the bands out. The watch did not come with any tools.
You will need a Torx 6 screwdriver/bit to change the watch band.
Customer Support answered on January 16, 2017
Is the 50mm distance across the bezel to the crown or from bezel to the other side of the bezel ?
It is the distance from bezel to the other side of bezel.
Customer Support answered on October 25, 2016
Is there a warranty (also for international customers) givven on this watch?
Our watch warranty policy also applies to international customers as long as they purchased the watch either directly from us, or one of our authorized dealers/re-sellers.
Customer Support answered on August 15, 2016
Are the tritium tubes T25 or T100?
The tubes are not divided into the T25 group or the T100 group. If all the radioactivity added up is below 25mCi, we call the watch T25. If all the radioactivity added up is above 25mCi, then we call the watch T100.

One can easily find out whether a watch belongs to the T25 or T100 group by looking at the printing on the dial. The T25 or T100 mark is usually printed near 6 o'clock position. Ours is marked at the 3 o'clock position.

Heavy Water watches are all T25.
Customer Support answered on April 30, 2016
Some pictures have a tritium tube in the #9 and some don't. Which is the current version?
The tritium you see inside "9" is actually on the second hand which happens to be sitting on top of 9. The number "9" itself does not have a tritium tube inside.
Customer Support answered on May 31, 2016

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