20mm dark green leather NATO strap, NATOSCAN Arezzo line. Vegetable-tanned leather backed with a hypoallergenic hide, under 2mm thick. Stainless steel buckle and keepers. Handmade in Arezzo, exclusively for La Boîte à Montres. 20mm lug width — Sinn 556, Sinn 104, Christopher Ward C60 Trident Pro 40, Certina DS Action Diver 38, Mido Ocean Star Tribute, vintage watches with cream markers.
We photographed this strap on a Rolex 5513 — the Submariner that followed the 6538 of Goldfinger. Khaki points back to the military origin of the NATO strap, but in vegetable-tanned leather it loses everything that might have remained of fatigues. Military gone to town.
Vegetable tanning takes weeks where chrome takes hours. It costs more and it is slower. In exchange, the leather develops a patina instead of cracking: it darkens, it takes the grain of your wrist, it tells a story after two years.
Nylon is just over a millimetre. Leather, lined, should be double that — and would no longer pass under the case. Our artisans hold under 2mm with two thicknesses of leather, one a hypoallergenic lining. No lug-to-case clearance causes difficulty.
This strap exists nowhere but here. It is handmade in Arezzo, Tuscany, by a workshop we work with directly. No reseller offers it, no marketplace copies it — to copy it, you would first have to know how to make it.
One strap, passing under the case and looping back to the buckle. You open no spring bars, you reach for no tools. And the watch is held at two points instead of one — that is what makes this type of strap safe. Stainless buckle and keepers.
The video shows a nylon NATO strap, but the movement is exactly the same: the strap passes under the case, the spring bars stay put, no tools are needed. Leather fits precisely this way.
Better written here than left for you to discover. This strap is not waterproof and never will be: it is leather. If your watch goes in the water, you need a nylon NATO strap alongside. Many of our customers own both and switch by season.
Christopher Ward C60 Trident Pro 40, Certina DS Action Diver 38, Mido Ocean Star Tribute, Longines Legend Diver 39, CWC SBS Diver. Measure the gap between your lugs, not the case diameter.
The range has variations: see the taupe NATOSCAN and the dark brown NATOSCAN. Everything is here: Arezzo leather straps 20mm.
Fitting takes a single move: see how to fit a NATO strap. Still deciding? See how to find the right strap width.
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