The NATO strap: how a 1973 British military spec became the most worn watch strap in the world

Almost every watch enthusiast owns a NATO strap. That is not a particularly remarkable statement. What is remarkable is how few people know where the strap actually came from.

The NATO strap is one of those objects that has become so familiar that its history has been flattened into a handful of half-remembered stories. Ask a room full of collectors where it originated and you will usually hear some variation of the same answer: James Bond, Sean Connery, Goldfinger, the 1960s.

It is a good story.

The problem is that it is not really true.

The strap we now call a NATO strap was not created by NATO. It did not appear in the 1960s. And the striped nylon strap Connery wore on his Rolex Submariner in Goldfinger was not a NATO strap in the modern sense either.

The real story begins nearly a decade later, inside the British Ministry of Defence, with a procurement document that most people have never seen and that was never intended to become part of watch culture.

Like many interesting watch stories, it starts with a problem rather than a product.

The Bond myth, corrected

If there is a patient zero for NATO strap mythology, it is Goldfinger.

Released in 1964, the film shows Sean Connery wearing a Rolex Submariner reference 6538 on a striped nylon strap. The image has become one of the most reproduced wrist shots in horological history. Over time, the assumption followed naturally: if Bond wore it, and if it looks like a NATO strap, then it must have been the original NATO strap.

Except it wasn't.

The first issue is chronological. The British Ministry of Defence specification that defines the strap we now call a G10, or NATO strap, was not published until 1973. Goldfinger was already nine years old by then.

The second issue is more interesting.

Research into the history of military straps identifies Bond's strap as a Royal Air Force item, reference 6B/2617, officially listed as "Strap (Nylon), Wrist Watch" in RAF equipment documentation. It measured 16mm wide. Connery's Submariner had 20mm lugs.

Once you know that detail, you cannot unsee it. The strap looks slightly too narrow for the watch because it actually is. What many people now regard as a defining design feature was, in reality, a consequence of using an undersized military strap on a larger watch.

The resemblance between the Bond strap and the later G10 is real, but it is largely visual.

Striped nylon webbing existed long before either. Military organisations used similar materials throughout the 1950s and 1960s for everything from equipment straps to parachute-related applications. Bond's costume department did not accidentally predict the future of watch collecting. It simply selected a practical piece of nylon webbing that happened to photograph well.

That distinction matters.

Not because it diminishes Bond's role in the story, but because it makes the actual history more interesting. The strap on Connery's wrist and the strap later issued by the British military belong to the same family, but they are not the same object.

Goldfinger gave nylon watch straps cultural visibility.

The Ministry of Defence gave them a specification.

Those are two very different things.

30 November 1973: a procurement document becomes a cultural object

The date deserves to be remembered.

On 30 November 1973, the British Ministry of Defence published Defence Standard 66-15, titled simply "Strap, Wrist Watch." SJX Watches dates the document precisely. The specification was not addressed to enthusiasts. It was addressed to contractors who might bid on the tender to manufacture military-issue watch straps. There is no marketing language in it. There is no design philosophy. There are dimensions, materials, and tolerances.

That is precisely what makes it interesting now.

The spec calls for a strap 280mm long, 20mm wide, and 1.2mm thick. The material is straight cross-weave nylon ribbon, free from additives that could irritate the wrist under humid or extreme field conditions. The colour is specified by reference to a national standard, BS 4800 card number 3, code 18B25. Officially, this shade is called Admiralty Grey. The buckle, prong and keepers are chromium plated brass. The buckle is recessed so the prong locks into place. The loops sit at 12mm, 37mm, and 87mm from the buckle end.

Joints heat-welded. Ends heat-sealed. Almost nothing left to a manufacturer's interpretation.

The production contract eventually went to Phoenix Straps Ltd of Cardiff, which became the supplier most closely associated with MoD-issue G10 straps over the following decades. The spec itself was superseded by Defence Standard 66-47 in 2001, but the design carried through almost unchanged. Only the procurement language was modernised.

The aesthetics we now associate with the NATO strap are, strictly speaking, not aesthetics at all. They are the visible footprint of operational requirements. Durability in the field. Replacement at low cost. Manufacture by any contractor willing to meet the spec.

The interesting part for today is not the nylon. It is the method.

Start with the wrist problem. Let the strap architecture grow out of it. That principle has produced almost every strap that has actually mattered since 1973, and it is the same principle now being applied to wrists that need to carry both a mechanical watch and a connected device.

A strap engineered to fail safely

Most people who own a NATO strap never notice its most clever feature.

The strap is deliberately longer than your wrist needs it to be. That extra length is not for aesthetics. It is not even for comfort. The extra length passes behind the watch case, through two retaining keepers, and emerges on the other side. The watch case is held against the strap by a second pass of nylon, not just by its spring bars.

This is the fail-safe.

If a spring bar breaks or pops out (which spring bars do, eventually), the watch case stays attached to the strap by the underside loop. It may flop sideways. It will not hit the ground.

For a soldier in the field, that single design choice is the difference between losing a tool and keeping one. The G10 was built around the assumption that spring bars fail. Most modern strap designs assume the opposite, which is partly why a properly made G10 still feels engineered in a way most contemporary straps do not.

The construction itself is just as deliberate. Cross-weave nylon, heat-welded at every joint, heat-sealed at every end. The strap cannot fray. You can soak it, freeze it, bake it, expose it to chemicals, and it remains a strap. The chromium plated brass hardware was less prone to rust than the untreated steel alternatives the MoD might otherwise have specified. There are no leather seams to crack and no stitching to unravel, because the construction relies on a single piece of nylon and welded joints rather than assembly. Whatever defeats most conventional straps will probably not defeat a G10.

Every choice in the spec answers a specific operational question. The G10 was not styled. It was specified.

Quite a lot of those choices have been quietly dropped in the commercial NATO market that grew up over the past two decades. Civilian production tends to substitute stamped construction for heat-welded joints, and stainless steel hardware for the original chromium plated brass. What is sold as a NATO strap in 2026 is, in most cases, a stylistic descendant of the G10 rather than a strict functional equivalent.

Collectors who want the actual specification still look for Phoenix-made straps with documented MoD provenance. They are not difficult to identify if you know what you are looking for. The hardware feels different in the hand. The nylon weave is slightly denser. The keepers sit at exactly the right positions because the spec required them to.

The name nobody really understands

Here is something most enthusiasts get wrong, including ones who have owned the strap for years.

The strap is not actually called NATO.

The correct name is G10. The name comes from the British military requisition form G1098, which a soldier filled out to receive a strap from his quartermaster's stores. Everyone abbreviated the form number to G10, and over time, so did the strap that came back through it. Teddy Baldassarre's history of the NATO strap traces the form numbering precisely. A British soldier in 1980 asking for a watch strap did not ask for a NATO strap. He asked for a G10.

So where does NATO come from?

From an administrative footnote.

Every piece of equipment issued by a NATO member country, regardless of whether it had any actual operational link to NATO, was assigned a NATO Stocking Number. The G10 had two: 6645-99-124-2986 for army and navy, 6645-99-527-7059 for air force. Those numbers appeared in the strap's documentation. Civilians who came across the documentation eventually shortened the term to "NATO strap," and the name stuck.

NATO never developed the strap. NATO never used it exclusively. NATO never specified it through any NATO standard. It just happened to carry a NATO Stocking Number, which was equally true of rifles, mess tins, and a thousand other items of British military issue that nobody today calls NATO.

Watch purists still prefer G10. Watch enthusiasts mostly use NATO. Both names point to the same object. Only one of them tells you anything true about its origin.

When the strap left the army

The 1973 specification permitted exactly one colour.

Admiralty Grey.

In practice, the British military departed from the specification almost immediately. Within a few years of the strap's introduction, individual regiments began issuing variants in their own colours, with stripe patterns that identified the unit at a glance.

The most famous of these is a striped pattern in dark blue, red, and dark green, often associated with the Household Division. This visual is now so welded to "NATO strap" in the civilian imagination that most enthusiasts treat it as the default. Strictly, it is not a regulation G10. It is a regimental variant of one. Anyone in the British military of that period would have read the colours and known which unit the wearer belonged to within seconds.

That is the moment the G10 stopped being purely functional and started carrying signal.

A soldier wearing his regiment's colours on his wrist was, knowingly or not, communicating something about identity. The strap had become more than its specification, decades before any civilian thought to wear one for fashion.

From obscurity to global wardrobe

For most of its existence, the G10 lived in obscurity. It did not appear in civilian shops. It was not photographed for watch magazines. It moved through the parallel economy of British military surplus, distributed informally outside any structured retail channel. To anyone not actively looking for it, the strap might as well not have existed.

Three things changed that over a span of roughly fifteen years, more or less in sequence.

The first was a slow rediscovery of the Goldfinger Bond strap by horological hobbyists in the late 1990s and early 2000s. The watch press of that period, which is to say before Hodinkee, before Worn & Wound, before any of the modern outlets had launched, occasionally ran features on what Bond had worn on his wrist. The visual confusion between Connery's striped RAF strap and the later regimental G10 was almost total, and almost nobody bothered to correct it. The two became, in collective memory, the same thing.

Then came the rise of online watch communities. Forums like Watchuseek and TimeZone connected enthusiasts and small manufacturers across countries through the 2000s. The G10 started being mass-produced for the civilian market for the first time in its history, almost entirely outside any military procurement chain. By the mid-2000s, supply was meeting a demand that had not existed twenty years earlier.

And then Daniel Craig arrived. The Casino Royale-era Bond revival, from 2006 onwards, reintroduced the visual to a generation that had never seen Goldfinger and now associated the strap with a contemporary character. By around 2015, the NATO strap had become one of those items that an enthusiast was effectively obliged to own.

The strap had completed a fifty-year journey from procurement document to global accessory, without changing its specification in any meaningful way.

What the G10 actually teaches us

The G10 story is not really about a strap.

It is about how watch culture absorbs objects.

A piece of British military procurement, designed to be invisible and replaceable, ended up as one of the most discussed accessories in horology forty years after its specification was published. The strap itself did not change. What changed was how people read it.

That transformation is worth pausing on, because it tells us something about the wrist as a surface for meaning. In 1974, a G10 was a tool. In 2024, it is a signal: of preference, of taste, of horological literacy, sometimes of military reference, often just of having spent enough time on watch forums to know what to call it. The object stays the same. The reading is everything.

The same arc applies to other functional straps. The Tropic strap of 1962 travelled the same route from dive tool to fashion item, on a longer timescale. The leather pilot strap of the 1930s got there first. The G10 is simply the version we have the cleanest documentation for, which is part of why it gets disproportionate attention.

If there is a lesson here, it is that the wrist has never been a neutral surface. The same strap that a soldier wore in 1973 to keep his watch attached through a field exercise is being worn today by a watch collector to telegraph a lineage of taste. Neither wearer is wrong. They are simply reading the same object through completely different frames.

That continuity matters for whatever comes next.

The G10 was an answer to a 1973 question about how to keep a soldier's watch attached to his wrist under field conditions. The strap question facing 2026 has shifted. It is no longer about how to keep one watch on the wrist, but about how to carry a mechanical watch alongside the device that handles connectivity, notifications, and data.

The form factor of the answer will look nothing like a G10.

The discipline behind it, which is to say an engineered response to a real wrist problem, is the part that should feel familiar.

FAQ

When was the NATO strap actually invented?

The strap most people call NATO was specified on 30 November 1973 by the British Ministry of Defence under Defence Standard 66-15. It was a piece of military procurement, not a fashion design. The original spec was superseded in 2001 by Defence Standard 66-47, with the design preserved.

Did James Bond wear a NATO strap in Goldfinger?

Strictly speaking, no. The 1973 G10 specification did not exist when Goldfinger was filmed in 1964. Sean Connery wore a Royal Air Force strap, reference 6B/2617, that was 16mm wide on a 20mm-lug Rolex Submariner. The visual resemblance to the modern NATO is real, but the strap itself was a different object under a different specification.

Why is it called G10 if it has nothing to do with NATO?

G10 is short for G1098, the British military requisition form a soldier filled out to get a strap from the quartermaster's stores. The form was universally shortened to G10, and over time so was the strap it produced. The NATO Stocking Number that gave the strap its civilian nickname was assigned for inventory purposes and has nothing to do with the design itself.

Are modern NATO straps the same as the original G10?

In most cases, no. The 1973 specification called for heat-welded joints, heat-sealed ends, cross-weave nylon, and chromium plated brass hardware. Commercial production routinely substitutes stamped construction and stainless steel hardware. Phoenix-made straps with documented MoD provenance are about as close to the original specification as you can find commercially today.

What is the fail-safe feature of the original design?

The G10 is longer than the wrist needs it to be. The extra length passes behind the watch case through two keepers, so that if a spring bar breaks, the watch case stays attached to the strap by the underside loop instead of falling to the ground. The MoD required this design. It was never an aesthetic decision, and it remains one of the quietly brilliant parts of the design.

Who manufactured the original NATO strap?

Phoenix Straps Ltd of Cardiff, the historic supplier to the British Ministry of Defence, held the production contract for the G10 from the 1970s onward. Phoenix-made G10s with documented MoD provenance are still treated as the reference standard by collectors who care about the difference.