Best Overall Marathon GSAR Automatic Marathon GSAR Automatic

This classic dive watch offers top-shelf build quality and attention to detail. In fact, let’s call this one a timepiece.

  • Water-resistant to depths of 1,000 feet
  • Timeless style is suitable for deep-sea dives or formal events
  • A hefty price tag makes this a watch for serious aficionados only
  • Some buyers might even be tempted to baby it, and that’s not what it’s for
Best Value Luminox Leatherback Sea Turtle Luminox Leatherback Sea Turtle

We expected this kind of quality from Luminox, but you might be surprised by how affordable it is.

  • One battery lasts years
  • This watch is also water-resistant to a depth of 330 feet
  • Its tactical looks punch above the price
  1. We think this watch looks great, but it wouldn’t be our first choice for date night
  2. It’s best suited to combat and training situations
Honorable Mention Timex Expedition Scout 40 Timex Expedition Scout 40

If you want most of the benefits of a tritium watch without making that kind of investment, this is a serviceable stand-in.

  • Timex is an established brand
  • This watch has a classic utilitarian design that’s perfectly at home in the field
  • Choose from 26 color combinations
  • Glow-in-the-dark paint replaces tritium to make this watch more affordable
  • It’s a great alternative, but it’s not the real deal
Written By
Published Mar. 10, 2021

Start a search for watches, and you can quickly find yourself deep in a rabbit hole of products and opinions (ask us how we know). With so many quality brands and styles to choose from, it’s no wonder so many people have become watch collectors. Just remember that what makes a watch ideal for one situation doesn’t mean it’s a good fit for another. If you value low-light visibility, we highly recommend upgrading from digital screens and glow-in-the-dark paint. You deserve the same kind of technology that militaries around the world have been using for decades: tritium.

Tritium is naturally occurring, but very rare. It can also be produced as a byproduct of nuclear energy. Because it glows for decades without needing to be charged by external light, it offers a fantastic way to make things like watches, compasses, and sights visible at night. If you want a tactical advantage or just appreciate fail-proof technology, picking up a tritium watch is the way to go.

If you want the best and have the money to get it, this Marathon GSAR Automatic is the watch for you. The timeless design is easy to read at a glance, looks fantastic, and has a track record of being durable enough to handle whatever you throw at it. Tritium tubes at each hour and on all three hands make this watch easy to read, day or night. Paint on the rotating bezel also glows in the dark with enough prior exposure to light. This is also arguably the most capable dive watch on our list, with its rubber band and 1,000-foot depth rating. The self-winding Swiss movement powers this watch with the movement of your arm so you’ll never have to buy a battery. GSAR stands for government search and rescue, and we’re confident this watch will prove its worth no matter where you take it. Sure, it’s expensive, but we don’t expect things this good to come cheaply.

The Luminox Leatherback Sea Turtle makes a compelling case for anyone who wants a robust tactical watch that doesn’t break the bank. This is a watch we’d trust on deployment without losing any sleep over the risk of damaging it. The black 44-millimeter case and the 22-millimeter plastic band are subdued enough to wear in tactical environments, and the scratch-resistant mineral crystal is rugged enough to take a beating. Three colors of tritium make it easy to distinguish between hours, minutes, and the rotating bezel ring. It’s water-resistant to 330 feet, which is plenty for most people. Swiss quartz movement ensures accurate time. This watch is not automatic, so you’ll need an LR44 battery and the first one is included. Expect about three years of battery life. Luminox offers the Leatherback Sea Turtle in several color combinations, but this white-on-black design is our favorite.

Hazard 4 doesn’t get as much attention as we’d like, and that’s a shame because this Heavy Water Diver watch is damn good. The 50-millimeter case and oversized numerals give this watch a modern feel. Titanium construction keeps weight down and is incredibly strong. Tritium vials are easy to spot in the dark and, because they’re offset above the face rather than lying flat inside it, you can read the time from an angle just as well as from the top. Four two-tone vial color combinations are available. The rubber strap resists the elements and wicks sweat away from your skin. Sapphire crystal glass is scratch-resistant and the watch face is coated to avoid reflections in a tactical environment. Wear this watch safely down to depths of 990 feet. The tritium used in this watch is not as bright as some of the alternatives, but that’s actually something you’ll appreciate in a combat zone or when using night vision — it all depends on how you plan on using your tritium watch.

For a great-looking watch that’s stylish enough for a night out, check out Invicta’s Pro Diver. The stainless steel case and band are classic and will look great as long as you keep the watch. Japanese automatic movement is precise and doesn’t require batteries. Just wear the watch to power it using internal mechanisms. You can even take a peek through the window on the back of the case to see how it works. The waterproof rating extends to depths of 1,000 feet, meaning this watch earns the diver’s helmet logos on the case. It isn’t what we’d consider tactical by any stretch, but it’s still a solid watch and it earns our recommendation.

If real tritium puts other watches out of your budget, you can get part way there with a Timex Expedition Scout 40 until you’re ready to pull the trigger on something more expensive. Glow-in-the-dark paint replaces high-dollar tritium vials to make this watch far more affordable. You’ll still get a 40-millimeter case, mineral glass crystal, a date window, and water resistance down to 165 feet. The 20-millimeter woven nylon strap is durable, comfortable, and fits wrist sizes up to eight inches. The hour and minute hands glow, but the second hand does not. Best of all, there is a huge selection of colors and materials to choose from. This wouldn’t be our forever watch, but it’s certainly capable enough for daily duties and field exercises until you’re ready for an upgrade.

Related: 7 men’s watches to kickstart any collection

Why should you trust us

Here at Task & Purpose, I strive to bring you the best gear recommendations, whether you need a watch or a badass tomahawk. I’ve worn cheap digital watches that only needed to survive a field exercise, watches designed for formal events, atomic watches, and the latest GPS gadgets. Regardless of price, you and I both know that there’s no such thing as a perfect watch. What’s important is finding one that does what you need it to do.   

Tritium watches are popular for good reason, and there are types and styles for just about any occasion. Tactical tritium watches are worthy of nighttime combat operations. Formal tritium watches look fantastic at a club or paired with a suit and tie. Dive watches are backed by breathtaking precision. We wouldn’t be surprised if your first purchase becomes the beginning of a collection. 


Tritium has long been a staple in the world of tactical gear. It’s used in lensatic compasses to aid in night land navigation. Firearms have incorporated tritium into their night sights for decades. It only makes sense that you’d want this technology in your watch.

Tritium is placed into watches in the form of tiny vials, or tubes, rather than being painted on in a liquid form. With vials marking the hands and face, you can easily keep track of time without lighting up a digital screen or giving away your position with a flashlight. Tritium is also compatible with night vision optics.


Just because you want the practicality of a watch face that’s visible at night doesn’t mean you have to limit yourself to watches designed for a combat zone. Formal tritium watches add luminous technology to stylish timepieces fit for a night on the town. Careful design integrates luminous vials into timeless watch faces beautifully.

Popular brands like Invicta offer watches that look as great as they perform. Not only can you class up an outfit with a gold or silver watch, but you can also take a midnight swim without worrying about damaging it. That’s perfect for all those black-tie affairs (or beach barbeques) you go to.


Dive watches are intended for extensive use underwater and are held to a higher standard than other watches. Because of the added water pressure experienced at depth, these watches must adhere to incredibly strict quality standards to prevent malfunction. Divers also expect practical design cues like tritium and large numerals that are easy to read in conditions with poor visibility.

Because of this build quality, dive watches have also evolved into a bit of a status symbol. Even collectors who never intend to dive appreciate the craftsmanship that goes into a good dive watch and are willing to pay to own one.

Related: Be safe and suave with these 5 dive watches

Features to look for in tritium watches

What separates these watches from the crowd is the tritium used in the watch face. This luminous material glows without being charged by a light source. It lasts decades and shines much brighter than glow-in-the-dark paint. You can also find tritium on compasses and night sights.

Because this material is fairly expensive, tritium watches tend to be marketed toward higher-end buyers who are willing to pay more than $200 for an analog watch. While this means low-budget options are hard to come by, it also means that any tritium watch you find is likely to have quality components throughout. Expect features like precise movement and automatic designs that don’t require a battery. 

Pricing ranges for tritium watches

  • Between $200 and $500: Tritium is fairly expensive, so don’t expect to find it on entry-level watches. For about $200, you can upgrade from glow-in-the-dark paint to actual luminous tritium.
  • Between $500 and $1,000: Mid-level tritium watches strike an excellent balance between affordability and features. Expect features like engraving instead of paint and more trendy styling.
  • More than $1,000: Premium tritium watches demand a hefty price tag, but they come with impeccable movement and quality. These watches are bound to become family heirlooms.

How we chose our top picks

We would love to have a test watch for every occasion and day of the week, but sometimes logistics get in the way and we have to get creative. When that happens, we rely on the wisdom of other consumers. For this gear guide, we scoured hundreds of reviews and thousands of ratings on dozens of products to find out which tritium watches buyers love, and which they find disappointing. Using that information, we’re able to provide you with recommendations on the best products out there.

Related: Keep on course with these 6 aviation watches

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