The History of Military Watches: From Trench Watches to Unit Tudors

Walk into any team room, squad bay, patrol briefing, or VFW bar in America and start a conversation about watches. Then cancel the rest of your plans, because you're going to be there a while.

It doesn't matter if the guy across from you is wearing a $40 Casio held together by electrical tape and spite, or a Submariner he bought before a deployment "as an investment" (sure, brother, how’s Deb and the kids?). The obsession is the same and so are the stories. Most people don’t ever ask the obvious question: why?

Why does a profession that will happily lose, break, or trade away every other piece of issued gear treat a wrist-mounted clock like a sacred object?

Turns out there's over a hundred years of history behind it.

It Started in the Trenches, Not the PX

Before World War I, wristwatches were basically jewelry, dainty little things marketed to women. A serious man carried a pocket watch, ideally while stroking his mustache and complaining about the youth (I’m looking at you Monopoly guy.)
Then came the advent of artillery.

Coordinated barrages, timed assaults, going "over the top" at a precise minute, none of that works when you're digging a pocket watch out from under a greatcoat with frozen fingers while someone shoots at you. So soldiers and officers started soldering wire lugs onto pocket watches and strapping them to their wrists. The "trench watch" was born, complete with shrapnel guards over the crystal, little metal cages that made your watch look like it was wearing its own body armor. Reminiscent of Mad Max? Maybe. But it worked.

By the end of the war, the wristwatch had gone from "feminine accessory" to "thing that keeps you alive." Veterans came home wearing them, and the pocket watch quietly died of embarrassment. The very first lesson of military watch culture was written in the mud of France: a tool you can use under stress beats a nicer tool you can't.

WWII: The Advent of the Field Watch

World War II is where the military watch stopped being improvised and started being specified. The U.S. issued the A-11, a small, black-dialed, hackable field watch (hacking means the seconds hand stops when you pull the crown, so an entire unit can sync to the second). Historians have called it "the watch that won the war," which is dramatic, but shocking as it may be, coordinating amphibious landings across multiple beaches does, in fact, require everyone agreeing on what time it is.
 

Across the pond, the British Ministry of Defence (not a typo, the Brits don’t use “defense”) commissioned twelve Swiss manufacturers to build watches to one brutal spec: waterproof, shockproof, accurate, legible in the dark. Collectors now call them the "Dirty Dozen," and people pay stupid money for them today, which is hilarious, because they were built to be disposable government property. Somewhere, a supply sergeant is spinning in his grave.

The WWII era began cementing the watch as a tool you simply could not go without in a field environment.

Vietnam: Welcome to the Jungle

Vietnam is the golden age of military watch mythology, and it runs on two parallel tracks.

Track one: issued and PX-bought beaters. Special operations guys running recon were handed sterile Seikos because no branding that could identify them, and those humble watches became legends. Meanwhile, every PX sold affordable Seikos to regular joes, and Japanese watches earned a reputation in the jungle that Swiss marketing money still can't buy back.

Figure 2 - MAC-V SOG Seikos

Track two: the escape-and-evasion Rolex. The legend goes that pilots bought gold Rolexes or GMT-Masters before deploying, not as normal “I’m an aviator and better than you bling”, but as portable, universally recognized currency. Get shot down behind enemy lines? A gold watch might buy your way out. Did this work for many people? Unclear. Did it give three generations of servicemen a justification for buying an expensive watch before deployment? Absolutely. Some traditions are load-bearing, and this is one of them. Do not examine it too closely, seriously.

This era also gave us the military dive watch canon, my personal drug of choice. Tudor and Rolex Submariners issued to navies, Blancpain's Fifty Fathoms built for French combat swimmers, and eventually the American Benrus Type I: a slab of steel made for UDT and SEAL guys with one design philosophy, be un-killable. The Brits would later hand the same mission to CWC, whose watches are still so unglamorous and reliable that they've basically become a personality type.

The Plastic Revolution

In the '80s and '90s, while civilians were learning to treat watches as luxury status symbols, the military community went the exact opposite direction and fell in love with two pieces of plastic: the Casio F-91W and the G-Shock.

 
Figure 3 - Soldier Wearing an Issued G-Shock Pathfinder

The F-91W costs about as much as a decent lunch. It runs for seven years on a battery, weighs nothing, and has been strapped to more wrists in more bad places than possibly any watch in history. The G-Shock, born from one Casio engineer's obsession with building a watch that could survive being dropped. became the unofficial uniform of the GWOT era. Look at photos from the last twenty years of American conflict: it's a sea of DW-6600s and G-Shocks on dusty wrists, doing exactly what a hundred dollars asked of them. I personally wore a ranger green G through Iraq, Afghanistan, Syria and Africa, and never once second-guessed that decision.

This is truly where the tactical watch culture differs from the civilian world: in this culture, the cheap watch isn't the compromise. It's the flex. A beat-to-hell G-Shock says "I use my gear." A pristine luxury diver says "I have a car payment on my wrist." Both guys are welcome at the table, but only one of them gets asked where the scratches came from, with a grin and a beer.

The Modern Era: The Culture Built Its Own Industry

Today, the community has gotten so obsessed that it stopped waiting for companies to understand it and just started making its own way.
Sangin Instruments is the flagship example, founded by a former Marine Raider, named after one of the nastiest districts in Helmand Province, and now so entrenched in the SOF and law enforcement world that they’re nearly impossible to buy unless you manage to land right on a drop. Ask a watch-nerd civilian about Sangin and you'll get a blank stare. Ask a cop or a team guy and there's a decent chance one is on his wrist right now. Certain models are literally reserved for people in certain professions, they sell out constantly, and the whole brand runs on the same principle that we keep discussing. Tool first, story second, marketing third. 

 

Figure 4 - Sangin Instruments Neptune

Across the pond, Stirling Timepieces does the UK version of the same thing, infantry-built watches from a guy who actually carried a rifle, and SEAL-founded Resco has been putting hard-use divers on frogman wrists for years. This isn't a trend; it's a cottage industry of guys who got out, looked at the watch market, and said "none of you understand us, hold my white Monster."

Then there's the unit watch phenomenon, which is the closest thing modern horology has to a secret handshake. For decades, brands like Breitling, Omega, IWC, and yes, even Rolex, have quietly produced custom runs for specific military units: unit insignia on the dial, the motto on the caseback, and numbered pieces available only to serving members. The SAS got a run of custom Rolex Explorer IIs. The UK's Special Reconnaissance Regiment got Submariners with a Spartan-helmet crest, and one of those sold at auction for over $46,000, which is what happens when provenance meets scarcity meets, "you literally cannot buy your way into this club." 

Rolex has since largely handed the torch to Tudor, which now runs the most active unit-watch program going. Tudor's Pelagos FXD exists because Commando Hubert, France's combat swimmer unit, asked Tudor to build them a purpose-made dive tool. We’re slowly seeing a shift where the military didn't buy a civilian watch but rather, the watch was born in uniform and then released to the rest of the world, which in my book, absolutely rules.

 Figure 5 - Tudor Pelagos FXD GMT Watch

Holding this whole ecosystem together is the community layer, accounts and clubs like Sketchy Boyz Watch Club and Watches of Espionage, where military, LE, and intel-adjacent watch nerds trade lore, spot unit pieces in the wild, and perpetuate glorious inside jokes like "sketchy dudes wear Breitling" (they do; it's science). SBWC members write field reports on what's worn on a warship. W.O.E. documents which agency guys wore what in which decade. It's equal parts historical society, meme page, and fraternity, which, if you think about it, is a pretty accurate description of the entire military watch tradition going back to the trenches.

The addiction is real, and it's structural. In a community where you can't talk about most of what you did, the watch is the one artifact that's allowed to tell the story. Of course guys chase them.

So Why the Obsession, Really?

Strip away a century of history and you're left with a few honest answers:

It's the one tool that's always on the body. Rifles get racked. Plates come off. The watch stays on through the mission, the flight home, the divorce (we hope), and the reunion. It's the only piece of kit that serves every chapter of a guy's life.

It's a record. Ask a veteran about his deployment watch and you're not going to hear about the movement. You're going to hear about where it's been. The watch is a logbook that happens to tell time.

It's tribal knowledge. Knowing why the bezel only turns one direction, why hacking seconds matter, why the tritium glows, that knowledge gets passed down like everything else in this community it’s delivered through half instruction, half insult, while being entirely sincere.

It's control. In a profession defined by chaos and waiting, the watch is the one variable that behaves. Time is fixed. The watch is either right or it's wrong. There's something deeply comforting about a tool with no excuses.

The Tradition Isn't Going Anywhere

Today the wrists have changed, Garmins or Suuntos running nav data, unit watches, retirement Rolexes or Omegas finally bought after thirty years of "someday", but the culture at its core is identical to 1917. Have a tool. Trust it with your life. Beat the hell out of it. Tell the story forever.

Because that's what this was always about. It's about a simple, century-old covenant between a professional and his equipment: I will take you somewhere terrible, and you will not quit on me. Kinda sounds like a good unit doesn’t it?

Every community has its handshake. Ours just happens to tick.

AJ Sherer is an Air Force veteran, Director of Training at Air Tractor International, an idiot, and has written for The Loadout Room & SOFREP.