Military watches: history, markings and Swiss brands

What is a military watch?

A military watch is a watch made to a military specification and issued to soldiers, sailors or aircrew, or a civilian watch built in that style. The goals are simple: you must be able to read it at a glance, day or night, and it must keep running after knocks, water, dust and years of hard use. Typical features are a black dial with large white numerals, luminous hands and markers, a plain steel or matte case, a sturdy strap and, from the Second World War on, a hacking seconds hand that stops when you pull the crown so a unit can synchronize its watches.

The term covers several neighbouring types. A field watch is the basic soldier's watch: three hands, often a 24-hour inner scale, no complications. Pilot's watches and dive watches were also issued by air forces and navies, so a military watch can look like either. What makes a watch truly "military" is not the style but the issue: government markings on the case, a contract, and a documented service history. Many watches sold as "military" today are civilian watches in military style, and that is fine as long as you know which one you are buying.

History of the military watch

For most of the 19th century, officers carried pocket watches. They were hard to use on horseback or while handling a rifle. During the Boer War (1899 to 1902), soldiers began strapping pocket watches to the wrist in leather cups. In 1901 the London jeweller Mappin & Webb sold a "Campaign" watch, an Omega movement in a leather wrist strap, that could be sent to officers at the front.

The First World War made the wristwatch a man's object. In the trenches, artillery barrages and infantry attacks had to start at exact times, and an officer needed both hands free. Pocket watches were the official issue, but officers usually bought their own wristwatches. These "trench watches" had wire or fixed lugs, luminous numerals, small seconds at six o'clock and sometimes a metal grille to protect the crystal from shrapnel. Screw-down or sealed cases kept out rain and mud. Many Swiss makers supplied the movements, and Rolex, then based in London, sold silver officer's watches during the war.

In the Second World War, armies ordered wristwatches in huge numbers. The US Army Air Forces adopted the A-11 specification (US Army spec. 94-27834): a black dial, white numerals, central seconds and a hacking movement. American firms Elgin, Bulova and Waltham made it from 1941, and Hamilton stopped civilian production to supply more than one million watches and marine chronometers to the US forces. As context, the German Luftwaffe used the large B-Uhr observer's watch, made by German firms and by Switzerland's IWC, while the Italian navy's frogmen wore large luminous Panerai watches, with cases made by Rolex.

Britain bought most of its watches from neutral Switzerland. Its best-known order is the W.W.W., short for "Watch, Wristlet, Waterproof", delivered mainly in 1945. Twelve makers built it: Buren, Cyma, Eterna, Grana, IWC, Jaeger-LeCoultre, Lemania, Longines, Omega, Record, Timor and Vertex. Collectors call them the "Dirty Dozen". All had black dials with Arabic numerals, luminous hands, small seconds, a 15-jewel hand-wound movement and a steel case. Omega, Cyma and Record made the most; Grana made the fewest, which is why a Grana is the hardest piece to find for a complete set.

After the war, the British Royal Air Force ordered the IWC Mark 11 navigator's watch in 1948. The first pieces were delivered in 1949, and the RAF used it until 1981. Its soft-iron inner case protected the hand-wound Calibre 89 against magnetic fields.

During the Cold War, navies needed dive watches. The French Navy (Marine Nationale) tested Tudor Submariners in 1956 and placed a new order in 1958. From 1974 the cases were engraved "M.N." with the year of issue, and Tudor divers stayed in French service into the 1980s and beyond. In Britain, the Ministry of Defence issued the Omega Seamaster 300 from about 1967, and in the 1970s Rolex supplied modified Submariners, the references 5513 and 5517, now called "MilSub". They had sword hands, a fully graduated bezel and fixed strap bars. In the US, the Glycine Airman, launched in 1953 with a 24-hour dial and bezel, became popular with American pilots during the Vietnam War, a private purchase rather than a general issue.

On 30 October 1964 the US published MIL-W-46374, a specification for a cheap, accurate and "disposable" field watch. Makers included Hamilton, Marathon and Timex. Later revisions marked the tritium lume with a radiation symbol (1976), added quartz types (1986) and switched to sealed tritium gas tubes (1989). Hamilton also supplied the British Army's W10 field watch between 1973 and 1976.

Quartz changed military watches from the 1980s. Watches became cheaper, more accurate and often fully disposable. In 1989 mb-microtec built the Traser P6500 for the US Army, with self-powered tritium gas tubes that glow without charging. Luminox worked with the US Navy SEALs on a watch in the early 1990s. In the same period the Swiss Army knife makers moved into watches: Victorinox entered the watch business in the US in 1989 under the "Swiss Army" name, Wenger also sold watches, and Swiss Military Hanowa launched its line in 1990.

Today armies mostly issue cheap quartz or digital watches, but the link has not disappeared. In 2021 Tudor launched the Pelagos FXD, developed with the French Navy's Commando Hubert combat divers, with fixed lugs and a titanium case. Hamilton's Khaki Field line keeps the American field watch alive.

• 1901 – Mappin & Webb sells its "Campaign" wristlet with an Omega movement.
• 1914–1918 – Officers adopt the wristwatch in the trenches.
• 1941 – The US A-11 hacking watch goes into production.
• 1945 – Most of the British W.W.W. "Dirty Dozen" are delivered.
• 1949 – First IWC Mark 11 delivered to the RAF.
• 1956 – The French Navy tests Tudor Submariners.
• 1964 – The US publishes MIL-W-46374.
• 1970s – Rolex supplies the "MilSub" to British forces.
• 1989 – Traser builds the P6500 for the US Army.
• 2021 – Tudor launches the Pelagos FXD with the Commando Hubert.

Features and technology

Legibility comes first. A military dial is high-contrast, usually black with white Arabic numerals, a minute track and often an inner 13 to 24 scale for military time. Hands are wide and fully luminous. Early watches used radium paint, which is radioactive and can still be measured today. From the 1960s tritium paint took over, marked with a small "T" in a circle on the dial. Since the late 1980s many tool watches use sealed tritium gas tubes, often marked "H3" or "T25", which glow on their own for years.

The movement should be robust and easy to service. The W.W.W. had to be regulated close to chronometer accuracy. Hacking seconds became standard from the A-11 onward. Some watches added protection against magnetism, like the soft-iron inner case of the Mark 11. Cases are steel, later also plastic or titanium, with matte finishing so they do not reflect light. Fixed strap bars, as on the MilSub, the W.W.W. and the Pelagos FXD, mean the watch cannot fall off if one spring bar breaks.

Markings are what turn a watch into a military watch. British issue watches carry the broad arrow (pheon), the mark of government property, and a stores code. "W10" means British Army, "6B" or "6BB" Royal Air Force, "0552" Royal Navy. NATO stock numbers such as "6645-99-…" combine 6645 (time-measuring equipment) and 99 (the UK). French navy Tudors show "M.N." and a year. US watches carry the specification, a serial number and a contract number.

Famous Swiss military watch models

• Omega, Longines, IWC, Jaeger-LeCoultre and Eterna W.W.W. (1945) – five of the twelve Swiss makers of the British "Dirty Dozen".
• IWC Mark 11 (1949) – RAF navigator's watch with antimagnetic inner case, in service until 1981.
• Tudor Submariner "Marine Nationale" – French Navy dive watch, engraved "M.N." from 1974.
• Rolex Submariner 5513 and 5517 "MilSub" (1970s) – the most famous British issue dive watch.
• Omega Seamaster 300 (issued from about 1967) – British Ministry of Defence dive watch with a circled-T dial.
• Glycine Airman (1953) – 24-hour pilot's watch worn by many Americans in Vietnam.
• Hamilton W10 (1973–1976) – hand-wound British Army field watch.
• Hamilton Khaki Field Mechanical – today's version of the hand-wound American field watch.
• Traser P6500 (1989) – the tritium-tube watch built for the US Army.
• Luminox Navy SEAL – quartz dive watch with tritium tubes, developed with the SEALs.
• Tudor Pelagos FXD (2021) – titanium diver developed with the French Navy's combat divers.
• Longines Heritage Military – modern re-edition of Longines' historic military style.

Military watches on the pre-owned market

With military watches, provenance is everything. The same model can be worth a few hundred or many thousands depending on whether it was really issued and how original it is. Collectors pay most for watches with correct, untouched government markings, an original dial and hands, and paperwork: issue records, service books, photos of the soldier wearing it. A watch that comes from the original soldier's family is the strongest story.

Condition is judged differently than for civilian watches. Wear from service is accepted, but heavy polishing that softens engravings hurts value. Many issue watches were serviced by military workshops, such as the British REME, and received replacement dials and hands with tritium. These service parts are period-correct but usually worth less than the first-fit parts. Complete W.W.W. sets, Mark 11s, French navy Tudors and MilSubs are the main collector targets; modern field watches from Hamilton, Victorinox, Traser or Luminox trade mostly as everyday used watches.

Two documented results show the range. In April 2021 Fellows in Birmingham sold a British-issue Omega Seamaster 300 (ref. 165.024) for £15,312 including fees. In June 2022 a Rolex MilSub 5513/5517 issued to a Royal Navy diver sold at a Bonhams online auction for a hammer price of £155,000, even though its bezel was missing.

What to check before buying or selling

Few watch categories are faked as much as military watches. Fake "Dirty Dozen" Omegas with repainted dials are common, and civilian Submariners are converted into "MilSubs". Before you pay a military premium, check these points:

• Caseback engraving: it should be engraved, not laser-etched, with the right font and depth for the period, and match known examples: broad arrow, W.W.W. and two numbers for a Dirty Dozen, store codes like 0552 or W10 for later British watches, "M.N." and a year for French navy Tudors.
• Case and movement serials: compare them with published lists or the maker's archive. Military numbers on a case whose serial does not fit the contract are a warning sign.
• Dial and hands: look for redials. Check that the printing is crisp, the lume color matches on dial and hands, and the lume type (radium, tritium with circled T) fits the date of issue.
• Fixed bars and case shape: MilSubs, W.W.W.s and other issue watches with fixed bars should show no signs of drilled or altered lugs.
• Movement: it should be the correct calibre for that maker and contract, not a later or civilian replacement.
• Documents: issue papers, regimental records and service history add value; stories without proof add nothing.

Our guide on how to spot a fake watch explains the general checks. For a high-value military piece, ask an independent specialist to open the case before you buy.

What is your military watch worth?

To get a first idea, upload photos of the dial, the caseback engravings and the movement to our free watch value estimate. If you need a written valuation for an estate, insurance or a sale of a documented issue watch, order a watch appraisal.

Swiss military watches brands A–Z

14 Swiss brands with military watches in their current or historic range. Click a brand for its full history and value guide.

• Eterna – W.W.W.
• Glycine – Airman, Combat
• Hamilton – Khaki Field, Khaki Field Mechanical, Khaki Field Auto
• IWC Schaffhausen – Mark 11
• Jaeger-LeCoultre – W.W.W.
• Longines – Heritage Military, Heritage Military Marine Nationale
• Luminox – Navy SEAL, RECON Point Man
• Omega – Seamaster 300, W.W.W.
• Rolex – Submariner
• Swiss Military Hanowa – Thunderbolt
• Traser – P6500 Type 6, P67 Officer Pro, P99 Q Tactical
• Tudor – Submariner, Pelagos FXD, Ranger
• Victorinox – Infantry
• Wenger – Terragraph

Other watch types

• Dive watches
• Pilot watches
• Dress watches
• Chronographs
• Sports watches
• Jewelry watches
• Skeleton watches

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