What is a NATO Strap?

A NATO strap is a one-piece nylon watch strap that threads underneath your watch, sitting between the caseback and your wrist. Originally designed for the British Ministry of Defence back in 1973 (where it got the name — NATO Stock Number, if you're curious), the NATO watch strap was built with one job in mind: keeping your watch on your wrist, no matter what.

The clever bit? Because the strap runs as a single piece under the watch, if one spring bar fails, your watch stays put instead of hitting the pavement. That's the whole point — security without fuss.

These days, NATO straps are popular for a much simpler reason: they look great, they're ridiculously comfortable, and you can swap them in seconds to completely change the vibe of your watch. Whether you're rocking a beater Seiko or a Rolex Submariner, a nato strap is the easiest (and cheapest) way to freshen things up.

NATO Strap Size Guide

The only measurement that matters is your watch's lug width — that's the gap between the two little nubs (lugs) where the strap attaches. Grab a ruler, measure in millimetres, and you're sorted. Or skip the measuring and use our Strap Finder tool.

Here's a quick cheat sheet for the most common watches:

Got an odd size like 21mm? Go up to the next even size. We only stock even widths (18mm, 20mm, 22mm, 24mm) because nylon NATO straps compress slightly between the lugs — a 22mm nato strap will sit perfectly in 21mm lugs. Trust us, we get this question daily.

Not sure? Pop your watch model into our Strap Finder and we'll tell you exactly what fits.

Types of NATO Straps We Sell

Standard Nylon NATO

The classic. Woven nylon in a heap of colours — from solid colours like black, grey, and olive, to iconic striped combos like the Bond (black/grey) and the French tricolour. Lightweight, breathable, and perfect for everyday wear. This is where most people start.

Seatbelt NATO

Same design, premium material. Seatbelt NATO straps use a tighter, silkier weave that feels noticeably smoother on the wrist — think seatbelt material (hence the name). They've got a subtle sheen that looks a touch more refined if you want to dress things up a bit.

Zulu Straps

Often confused with NATOs, Zulu straps are thicker, chunkier, and use rounded stainless steel hardware instead of flat. They're built like tanks and suit larger dive watches really well. If you're after something with a bit more heft, Zulus are your go-to.

Camo & Military NATO

For the tactical crowd. Our camo and military NATO straps come in woodland, desert, urban, and other patterns. They pair brilliantly with field watches and anything with a military vibe.

How to Install a NATO Strap

Fitting a NATO strap takes about 30 seconds once you've done it a couple of times. Here's the drill:

1. Remove your current strap. Use a spring bar tool to compress the spring bars and slide the old strap off. Keep the spring bars — you'll need them.
2. Thread the NATO strap through. With the spring bars still in the lugs (or put them back in now), slide the long end of the NATO strap under the top spring bar, over the caseback, and under the bottom spring bar.
3. Pull it through until the watch sits centred on the strap, with the buckle hardware on the short tail side.
4. Fold the keeper strap back. Thread the short tail underneath the watch (between the caseback and the main strap) and through the second keeper ring. This is the bit that holds your watch secure if a spring bar pops.
5. Buckle up and tuck. Wrap it around your wrist, buckle to a comfy hole, and tuck any excess strap through the keepers.

Heads up: If your current watch uses quick-release spring bars (the ones with the little lever), you'll want to swap those out for standard spring bars. Quick-release bars are slightly thinner and can pop out too easily with a NATO strap. Standard spring bars are included with most of our straps, or you can grab a set from our tools section.

Frequently Asked Questions

Will a NATO strap fit my watch?

Almost certainly, yes. NATO straps fit any watch with standard lug bars — which covers about 95% of watches out there. As long as your watch has those two little nubs (lugs) sticking out where the strap connects, a NATO will work. The exceptions are watches with proprietary strap systems like Apple Watch or some Fitbit models.

What size NATO strap do I need?

Measure your lug width — the gap between the two lugs on your watch — in millimetres. That's your strap size. Most watches fall between 18mm and 22mm. Check our size guide above or use our Strap Finder for a quick answer.

My NATO strap is too long — what do I do?

You've got two options: tuck the excess through the keepers (most people do this), or trim it with sharp scissors and carefully seal the cut end with a flame to stop fraying. We've got a full guide on how to shorten a NATO strap if you want the step-by-step.

What's the difference between a NATO and a Zulu strap?

They look similar but there are a few key differences. Zulu straps are thicker nylon, use rounded (not flat) stainless steel hardware, and have rings at both spring bars instead of the NATO's fold-under design. Zulus feel more substantial on the wrist. NATOs are thinner, lighter, and generally more comfortable for all-day wear. Check out our Zulu strap range to see the difference.

Can I use a NATO strap on a Garmin or Apple Watch?

Garmin: technically yes, but we don't recommend it. The NATO strap sits between the sensor and your wrist, which blocks the heart rate monitor. You're better off with a rubber strap for Garmin watches. Apple Watch: no, not without a third-party adapter. Apple uses a proprietary lug system, so standard NATO straps won't fit directly.

Do NATO straps work with dive watches?

Absolutely — that's what they were designed for. The one-piece design means your watch stays on your wrist even if a spring bar fails underwater. NATO straps are a favourite with Seiko divers, the Rolex Submariner, and pretty much any watch you'd take in the water. Nylon dries quickly too, so no soggy leather situation.

How do I clean my NATO strap?

Dead easy. Hand wash with warm water and a bit of mild soap, give it a gentle scrub, rinse, and hang it up to dry. Some people chuck them in the washing machine inside a sock — works fine, but hand washing is gentler on the hardware. Avoid bleach and harsh chemicals. Most NATOs come up looking brand new after a wash.

Why Buy Your NATO Straps From Us?

We're Watch Straps Australia — a small team based in Perth, Western Australia. Not a dropshipper, not a faceless marketplace. We hold all our stock in our Perth warehouse and ship it ourselves.

• Same-day dispatch on orders placed before 11am AWST, Monday to Friday
• Free express shipping on orders over $60 — most of our value packs qualify
• Genuinely helpful support — email or message us and a real human (usually Brad) will get back to you
• Hassle-free returns — if it's not right, we'll sort it out
• Australian owned and operated — your money stays local

We've been doing this for years now and we reckon we've got the best range of NATO straps in Australia. But don't take our word for it — have a browse and see for yourself.

Browse More Watch Straps

Looking for something specific? Explore the rest of our range:

• Solid Colour NATO Straps — Clean single-colour straps for everyday wear
• Striped NATO Straps — Classic multi-colour combos including the Bond strap
• Seatbelt NATO Straps — Premium silky weave for a dressier look
• Camo & Military NATO Straps — Tactical patterns for field watches
• Leather NATO Straps — One-piece leather with NATO security
• Rubber & Silicone Straps — Waterproof two-piece straps for sport and dive
• Zulu Straps — Thicker, chunkier hardware for larger watches
• Single Pass NATO Bands — Slimmer profile, sits closer to the wrist
• Extra Long NATO Straps — For larger wrists or over-wetsuit wear
• Value Packs — Bundle deals with free shipping

NATO Strap Materials Compared

Not all NATO straps are made equal. The material makes a real difference to how the strap feels, looks, and holds up over time. Here's what you need to know.

Standard Nylon NATO Straps

The classic. Standard nylon NATOs are lightweight, breathable, and dry fast. They're woven from the same type of nylon used in seatbelts and military webbing, just thinner (about 1.2mm). Perfect for everyday wear, especially in warmer weather. They soften up after a few wears and become incredibly comfortable. Our nylon NATOs start at $9, making them one of the most affordable ways to completely change the look of your watch.

Seatbelt Weave NATO Straps

Seatbelt NATOs use a denser, silkier weave that feels more premium on the wrist. They're slightly thicker than standard nylon (around 1.4mm) and have a smoother texture with a subtle sheen. The tighter weave also makes them more durable. If you want something that looks a bit more refined but still has that NATO versatility, seatbelt weave is the way to go. Great for dressier watches or if you just prefer that smoother feel. Our seatbelt NATO straps start from $15.

Leather NATO Straps

Leather NATOs give you the one-piece security of a NATO with the classic look of leather. They're thicker (around 1.8mm), so they sit a bit higher on the wrist. Genuine leather develops a patina over time, which looks brilliant on vintage watches. The trade-off is they're not great for swimming or heavy sweating. Our leather NATO straps start from $20 and come in a range of colours from tan to dark brown to black.

NATO Straps for Popular Watch Brands

NATO Straps for Seiko Watches

Seiko is easily our most popular brand for NATO straps. The Seiko SKX007 and SKX009 take a 22mm strap, while the Seiko 5 series (like the SNZG15 and SNK809) uses 22mm or 18mm depending on the model. The Seiko Presage line takes 20mm. A black or olive NATO on a Seiko diver is one of the best looking combinations going around. If you're not sure what size your Seiko needs, check our Seiko strap guide.

NATO Straps for Casio Watches

Most Casio watches work perfectly with NATO straps. The popular Casio Duro (MDV106) takes a 22mm strap and looks incredible on a NATO for the price. Standard Casio dress watches usually take 18mm or 20mm. The main exception is G-Shock models, which need a special adapter due to their case design. Regular Casios with spring bars? No worries at all.

NATO Straps for Omega and MoonSwatch

The Omega Speedmaster looks fantastic on a NATO, and Omega themselves sell their own NATO straps for a hefty price. Our NATOs fit Speedmasters (20mm) and Seamasters (20mm or 22mm depending on model) perfectly. The MoonSwatch takes a 20mm strap and is a popular choice for NATO upgrades since the stock Velcro strap isn't everyone's favourite. A Bond-style NATO on a MoonSwatch Mission to Earth? Chef's kiss.

NATO Straps vs Other Watch Strap Types

Wondering whether a NATO is right for you, or if you'd be better off with a different strap type? Here's a quick rundown.

• NATO vs Leather (two-piece): Leather looks dressier but NATO straps are more versatile, quicker to swap, and better in water. NATOs also keep your watch secured even if a spring bar pops out.
• NATO vs Rubber/Silicone: Both are water-friendly, but NATO straps breathe better and come in far more colours and patterns. Rubber straps tend to trap sweat underneath. NATOs are also much easier to swap between watches.
• NATO vs Metal Bracelet: Metal bracelets are heavier and more formal. NATOs are lighter, cheaper, and won't scratch your desk. You can own ten NATO straps for the price of one decent bracelet, which means more variety.
• NATO vs Perlon: Perlon straps are braided nylon with a different look. They're thinner and arguably dressier, but NATOs are tougher and have that one-piece security feature. Both are great warm-weather options.
• NATO vs Zulu: Zulu straps are chunkier with rounded hardware. They suit larger watches and people who want a more rugged look. NATOs are thinner and more comfortable for all-day wear.

More Common Questions

Are NATO straps comfortable?

Very. Nylon NATO straps are soft, breathable, and sit flat on the wrist. They're lighter than metal bracelets and don't pull arm hair like some leather straps. Most people find them the most comfortable strap type for everyday wear. They do take a day or two to soften up if they're brand new, but after that they're set.

How much does a NATO strap cost?

Our NATO straps range from $9 to $25 depending on material and hardware. Standard nylon NATOs start at $9, seatbelt weave from $15, and leather NATOs from $20. All orders over $60 ship free within Australia, and we dispatch same-day from Perth on business days.

What is the best NATO strap colour?

Black and grey are the most versatile, going with basically any watch. The Bond-style black and grey stripe is consistently our best seller. For something with more personality, olive green pairs well with field watches, navy blue suits dive watches, and burgundy adds a bit of character without being too loud. If you want help picking, we wrote a whole guide on choosing the right NATO strap colour.