

🌊 Dive Boldly, Glow Endlessly — The Ultimate Titanium Timepiece
The HAZARD 4 Heavy Water Diver™ is a 50mm titanium dive watch featuring self-powered Swiss tritium illumination visible from all angles, 300-meter water resistance, and scratch-resistant sapphire crystal with anti-reflective coating. Designed for professionals and adventurers, it includes GMT tracking for dual time zones and comes with a military-grade travel case and custom T.P.R. band, blending rugged durability with sophisticated style.



























| Clasp type | Tang Buckle |
| Item type name | HeavyWaterDiver Cavern "B" GMT |
| Material | Titanium/Metal |
J**N
Really cool watch
I really like this watch. It's a bigger watch, fills up the wrist nicely. I even got the black silicone band so I chould have options. It's very well made. It's not a heavy watch. The tritium tube's glow is remarkably easy to read at night. It appears to be very durable but at that price point I'm afraid to be anything but gentle with it.
J**Y
Awesome Watch.
So far this watch is amazing. No issues at the time of writing this review (roughly 1mo ownership) 50mm watch face sounded giant, but even on my arm I don’t think it’s as bad as I had thought. I’m not a large built guy so it had me worried. PVD finish is very nice and uniform, we will see how it holds up in a year. The tritium glows bright, zero difficulty seeing the vials. I’m not planning to bang this watch up, so I can’t comment on durability, but it does seem to be built like a tank for what that’s worth. If you can afford it, I’d recommend it. I don’t think you’d be disappointed.
A**R
Sexy Mother F'er
I need my reader glasses for the date window. :( Other than that. It's awesome. The Tritium is perfect. The 1st time you look at it in the dark you will think that it's not bright enough but that is just your eyes dark adapting. When you wake up in the middle of the night it's actually kind of bright. I get huge compliments on this watch.
A**R
Price is very good for 900 but not any higher
Bezel ring is very loose, does not stay firmly locked when adjusted. The date is not big enough, for a large watch the tritium does not illuminate as bright as it should. the inner minutes for not illuminate at all. The weight is great and the crystal outstanding, but i’ve had cheaper dive watches with better features.
A**1
Amazing watch
Well worth the money. If you are reading this then you know how amazing H4 products are. I know own two of there watches and will never go back to other tactical watches you see actors wearing in the movies.
A**.
Awesome Watch
Great watch. Tritium markers work as advertised. Surprisingly light-weight.
P**R
Buyer beware no parts available for watch bracelet
There are no bracelet replacement pins for this watch!
M**O
Reloj Hazard 4
Me gusta: parece resistente, esfera clara fácil de leer, hasta ahora muy precisa, bisel de trinquete suave, peso ligero, correa cómoda con bloqueo. Recomendado
Trustpilot
1 week ago
3 weeks ago