Half the personality of a watch is the strap it sits on. Swap the strap, and you genuinely have a different watch — the same dial reads as formal, sporty, rugged, or playful depending on what holds it to your wrist. Understanding watch straps types explained properly is the single cheapest upgrade any collector can make. This NATO strap guide covers all four main materials, the honest pros and cons of each, how to match a strap to your watch style, and whether quick-release fittings are worth the switch.
Watch Straps Types Explained: The Four Main Materials
Leather
Leather is where it all started. When British soldiers in the Boer Wars of the late 19th century needed their pocket watches accessible in the African heat, they began attaching them to crude leather wrist straps. The wristwatch was essentially born from that necessity, and leather has never left. Today, leather straps are made from calfskin, alligator, crocodile, ostrich, stingray, and snakeskin — with alligator and crocodile sitting firmly at the luxury end.
A good leather strap moulds to the wrist over time, softens with wear, and carries a warmth that no other material replicates. It is the natural choice for a dress watch, elegant without effort. The downsides are equally real: leather and water are enemies. Sweat, rain, and humidity degrade it quickly. It requires conditioning to prevent cracking, and it will eventually need replacing. For anything involving regular water exposure, leave the leather at home.
NATO
The NATO strap is the most practical strap ever made. Developed for the British Army in the 1970s, its design is elegantly simple: one continuous piece of nylon that passes under the watch case and loops through both spring bars. If one spring bar fails, the watch stays on your wrist. That safety feature made it indispensable in military service, and it never really left.
Modern NATOs come in nylon, canvas, leather, and rubber, in every colour combination imaginable. They are lightweight, breathable, quick-drying, and cost almost nothing to replace. The trade-off is aesthetic: the pass-through design adds noticeable thickness under the case, and the sporty look does not translate to formal settings. On a field watch, a diver, or a tool watch, it is practically perfect.
Rubber
The rubber strap came of age in the 1960s alongside the explosion of dive watch popularity. The original Tropic strap featured a distinctive basket weave pattern and was built for water. In 1980, Hublot made history by releasing the first gold watch on a rubber strap — a combination that felt genuinely shocking at the time and now reads as visionary.
Rubber is water-resistant, flexible, easy to clean, and completely unbothered by sweat. For anything active — diving, swimming, running, travel — it is the most sensible choice. The one weakness is heat: in very humid or hot conditions, the inside of a rubber strap can become uncomfortably sticky against the skin. High-end luxury rubber strap options from brands like Rolex, Omega, and Patek have elevated the material well beyond its sporty origins.
Metal Bracelet
The metal bracelet is the most versatile option and, in many cases, the one the watch was designed to be worn on. The three most common types are the Oyster — the iconic three-link design — the Jubilee with its five-link construction, and the mesh Milanese, which drapes fluidly on the wrist. Metal dresses up or down with ease and integrates visually with the watch case in a way no strap fully replicates.
The honest negatives: metal bracelets are heavier, can feel cold in winter, scratch on polished surfaces, and will stretch with heavy daily use over years. Saltwater and chlorine can cause corrosion if not rinsed after exposure.
Leather vs Rubber Strap: How to Match Straps to Watch Style
The leather vs rubber strap question is mostly answered by occasion and activity. For dress watches, choose calfskin or alligator leather, or a slim polished metal bracelet. For dive watches and sports watches, rubber, NATO, or a metal bracelet all work. For field and tool watches, NATO and canvas are the most authentic pairing. For casual daily wear, NATO and rubber are the two most versatile materials — they survive whatever the day becomes.
Best Watch Bracelet Fitting: Quick-Release vs Spring Bar
Knowing how to change a watch strap properly is half the value of owning multiple straps. Traditional straps use spring bars — small compressed pins that require a spring bar tool or thin blade to release. It takes around sixty seconds once you have the feel for it, though beginners do occasionally scratch their lugs in the process.
Quick-release straps have a small lever or button on the underside of the lug end. Press it, the spring bar compresses, the strap releases — tool-free in ten seconds per side. Most aftermarket straps now offer quick-release as standard. If you plan to swap straps regularly, it is genuinely worth prioritising.
Frequently Asked Questions
Can I put a NATO strap on any watch?
Most watches with standard spring bar lugs accept NATO straps. Watches with integrated bracelets do not. Check your lug width before ordering — most NATO straps come in 18mm, 20mm, and 22mm.
Does a leather strap get ruined in the rain?
Regular water exposure degrades leather over time. Frequent moisture without conditioning causes cracking and stiffening. For anything water-heavy, switch to rubber or NATO.
What is the best watch bracelet for everyday wear?
A three-link Oyster-style or mesh Milanese offers the best balance of durability and versatility. Mesh bracelets are particularly comfortable as they flex naturally and sit evenly on the wrist.
I have bought watches specifically because I saw a strap combination I could not resist. Pas de regrets — every single time. — Theo
Your next favourite watch is probably one article away — Watchesfanboy.
