A NATO-style strap can be a practical choice for a watch that will get wet, but the strap does not make the watch suitable for scuba diving. Whether a specific strap is appropriate depends on its materials and maker’s care guidance; whether the watch is a dive instrument depends on the watch’s own specifications and instructions. The available sources do not establish the author’s personal diving experience or a change in personal opinion, so this article focuses on those practical distinctions.
Can you scuba dive with a NATO strap?
There is no universal answer for every strap sold as “NATO.” The name alone does not establish its material, construction, hardware, water-use guidance, or suitability for a particular dive. Check the strap maker’s instructions for the specific product and the watch manufacturer’s instructions for the watch.
For example, Esprit NATO says its textile straps, excluding Perlon, are suitable for regular use in sea or pool water. That is the maker’s guidance for its own straps; it is not a claim about every NATO-style strap and does not certify a strap for scuba use. Esprit NATO’s watchmaking and care guidance also says nylon can stretch slightly when wet and advises tightening the strap by one notch before water activity.
A water-friendly strap is not a dive-watch certification
Strap water-use claims and dive-watch suitability answer different questions. A strap may tolerate water without the attached watch meeting requirements for a divers’ watch.
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- Elite Heritage – First issued by Britain’s Ministry of Defense, the military-style nylon watch strap was designed to be tough, lightweight, and failsafe. Ours is no different—a testament to uncompromising quality and design that cuts no corners.
- Classic Design – Here at Archer Watch Straps, we consider the military-style nylon strap the wayfarer of watch straps. That’s why it was our very first model. A perfect balance of fashion and function, our nylon bands are clean, classic, and timelessly sharp.
- Made to Endure – Honoring its esteemed history, our strap was carefully crafted with premium waterproof nylon and a durable stainless steel mil-spec buckle that won't chip or tarnish. Fit for the modern day adventurerer, it's one of the most durable straps in our lineup.
- Locked in Place – Using the simple Y-Strap ensures that if one of your watch’s spring bars fails, the other will keep that treasured time-piece on your wrist. Our straps are sewn with use time-tested, heavy-duty stitching, so unlike bands that use cheap heat-bonding, our seams won’t come apart.
- A Fit for Any Wrist – This classic style comfortably fits wrists from about 5.5” to roughly 8.5” in circumference. And don’t worry—any excess tucks away easily for your comfort and convenience. We’ve also spaced our stainless steel keeper rings to allow for added slack in the loop, giving you more flexibility for placing the watch and buckle along the band.
ISO 6425:2018 specifies requirements and test methods for divers’ watches and saturation divers’ watches. Its stated scope covers watches designed to withstand diving at depths of at least 100 m and equipped with a secured dive-time measuring system visible in darkness. ISO says the 2018 edition was reviewed and confirmed in 2024 and remains current. The 100 m figure describes the standard’s scope; it is not a claim about typical diving depth. ISO 6425:2018 states: “This document specifies requirements and test methods for divers’ watches and for saturation divers’ watches for use in deep diving.”
Citizen says it reserves the term “diver’s watch” for watches conforming to ISO 6425 and describes requirements beyond depth rating, including readability, magnetic resistance, shock resistance, and strap strength. A water-resistant watch or a watch fitted with a water-tolerant strap is not therefore automatically a certified diver’s watch. See Citizen’s explanation of diver’s watches.
Rank #2
- Elite Heritage – First issued by Britain’s Ministry of Defense, the military-style nylon watch strap was designed to be tough, lightweight, and failsafe. Ours is no different—a testament to uncompromising quality and design that cuts no corners.
- Classic Design – Here at Archer Watch Straps, we consider the military-style nylon strap the wayfarer of watch straps. That’s why it was our very first model. A perfect balance of fashion and function, our nylon bands are clean, classic, and timelessly sharp.
- Made to Endure – Honoring its esteemed history, our strap was carefully crafted with premium waterproof nylon and a durable stainless steel mil-spec buckle that won't chip or tarnish. Fit for the modern day adventurerer, it's one of the most durable straps in our lineup.
- Locked in Place – Using the simple Y-Strap ensures that if one of your watch’s spring bars fails, the other will keep that treasured time-piece on your wrist. Our straps are sewn with use time-tested, heavy-duty stitching, so unlike bands that use cheap heat-bonding, our seams won’t come apart.
- A Fit for Any Wrist – This classic style comfortably fits wrists from about 5.5” to roughly 8.5” in circumference. And don’t worry—any excess tucks away easily for your comfort and convenience. We’ve also spaced our stainless steel keeper rings to allow for added slack in the loop, giving you more flexibility for placing the watch and buckle along the band.
What to check before wearing one in the water
- Confirm the watch’s limits. Follow the watch maker’s water-resistance rating, care instructions, and any restrictions on using the watch underwater. Do not treat the strap’s water guidance as evidence about the watch.
- Check the exact strap. Identify its material and construction, and look for the maker’s explicit guidance about sea, pool, or other water use. Do not generalize one maker’s advice to all NATO-style straps.
- Check fit and compatibility. Match the strap width to the watch’s lug width, ensure the hardware and threading are secure, and confirm the strap is long enough for any wetsuit sleeve. Wet stretch can affect fit; Esprit NATO recommends tightening its nylon strap one notch before water activity.
- Consider the dive-time system separately. A strap does not provide or validate the secured, visible-in-darkness dive-time measuring system described in ISO 6425’s scope.
How to care for a textile strap after water exposure
Care instructions vary by maker and material. For its straps, Esprit NATO advises against machine washing, recommends air drying, and warns that salt, detergents, and fabric softeners may damage the weave. Follow the instructions for the strap you own rather than assuming all nylon or textile straps can be cleaned the same way. Esprit NATO’s care guidance covers its recommendations.
Quick Recap
Best Value
- Watch Band Material: This watch strap is made of high-quality nylon, which has good elasticity and wear resistance in dry and wet conditions. Features Comfortable, durable, waterproof, and washable, and quick-drying. The buckle is made of 304 stainless steel, solid and sturdy
- Comfortable and Durable: This tightly woven nylon strap features laser cut holes to resist fraying. The textile strap is soft, lightweight, breathable, and durable, and it will not scratch the skin
- Size Selection: Available in 18mm, 20mm and 22mm sizes. Please accurately measure the watch lug width before ordering. Size =Band Width =Watch Lug Width
- Band Length: The watch strap has a total length of 280mm and is suitable for a wrist range of 14cm-21cm (5.5 inches -8.5 inches)
- Package Included: 1 watch strap + 4 spring bars+ 1 installation tool. You can easily remove your old strap and install this new strap with tool, very convenient
Rank #4
- Elite Heritage – First issued by Britain’s Ministry of Defense, the military-style nylon watch strap was designed to be tough, lightweight, and failsafe. Ours is no different—a testament to uncompromising quality and design that cuts no corners.
- Classic Design – Here at Archer Watch Straps, we consider the military-style nylon strap the wayfarer of watch straps. That’s why it was our very first model. A perfect balance of fashion and function, our nylon bands are clean, classic, and timelessly sharp.
- Made to Endure – Honoring its esteemed history, our strap was carefully crafted with premium waterproof nylon and a durable stainless steel mil-spec buckle that won't chip or tarnish. Fit for the modern day adventurerer, it's one of the most durable straps in our lineup.
- Locked in Place – Using the simple Y-Strap ensures that if one of your watch’s spring bars fails, the other will keep that treasured time-piece on your wrist. Our straps are sewn with use time-tested, heavy-duty stitching, so unlike bands that use cheap heat-bonding, our seams won’t come apart.
- A Fit for Any Wrist – This classic style comfortably fits wrists from about 5.5” to roughly 8.5” in circumference. And don’t worry—any excess tucks away easily for your comfort and convenience. We’ve also spaced our stainless steel keeper rings to allow for added slack in the loop, giving you more flexibility for placing the watch and buckle along the band.
Rank #3
- Wearing Comfort: Made from high-quality, lightweight nylon, watch band are comfortable to wear, even for extended periods. The breathable material prevents sweat build-up, ensuring comfort in any weather
- Durability: The nylon straps are known for their robust construction, making them resistant to wear, tear, and fraying. It is the best companion for daily activities and outdoor sports
- Strong stability: The "Y-shaped" structure design of the strap ensures that your watch is firmly fixed on your wrist. Even if the spring bar fails, the design of the strap can keep the watch securely fixed
- Versatility: watchdives watch strap are available in various colors and size, allowing you to easily change the look of your watch to match different outfits or occasions
- Easy Installation: All you need to do is thread the nylon band through the raw ear rods at both ends, thread out the dial, adjust the position, and thread the long strap into the loop
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