NATO Strap dark blue 19mm

19mm: a size you cannot find

Odd lug widths are the market's blind spot: manufacturers stop at 18 and 20. If your watch needs 19, you have probably given up looking — and settled for an 18 that rattles. Navy is the most versatile colourway in this width.

G10 heritage, without the folklore

The NATO strap came from a British Ministry of Defence order in 1973, referenced G10 — named after the form you filled in to get one. The specification: one piece, two spring bars, nylon that does not rot in tropical humidity, and enough length to go over a wetsuit.

Monobloc woven nylon construction, exactly as the British G10 specification defines it: the band runs uninterrupted, threads under the caseback and bears on both spring bars. Tongue and keepers in marine-grade anti-corrosion stainless steel, built for salt water. 30° machine, air dry.

19mm lug width: measure before ordering

Odd lug widths are rare, and the size depends on the exact reference, not the model name. Which is why we publish no model list for this width: it would be wrong half the time. Only the gap between your lugs counts.

Fitting on a dive watch

Removing a steel bracelet, on video

Few customers stop at one: see the 19mm black and grey NATO strap or the 19mm khaki green NATO strap. The full width is here: 19mm NATO straps.

For the backstory, read how the NATO strap became iconic. Slide the nylon under the case with our illustrated fitting method.