Size Guide
NATO straps are sized by lug width — the distance between the lugs where the strap attaches to your watch case. Measure with a calliper or check your watch manufacturer's specifications.
How to measure
Turn your watch over and look at the space between the lugs where the current strap sits. Measure this gap in millimetres — that is your lug width. If you are between sizes, size down.
Width guide
| 16mm | Small dress watches, ladies' watches, vintage pieces |
| 18mm | Seiko SUR series, Orient Bambino, most vintage dress watches |
| 20mm | The most common size. Seiko SKX, Submariner, Speedmaster, Tissot Everytime, Hamilton Khaki |
| 22mm | Panerai Luminor, Tudor Pelagos, larger sport and diver watches |
| 24mm | Panerai with large case, oversized divers |
Common watch references
| Casio G-Shock DW5600 / GA2100 | 16mm |
| Seiko SKX007 / SRPD (5 Sports) | 22mm |
| Omega Speedmaster / Seamaster | 20mm |
| Rolex Submariner | 20mm |
| Tudor Black Bay / Pelagos | 22mm |
Strap length
All our NATO straps follow the standard MoD configuration — 250mm excluding the buckle. This fits most wrists between 150mm and 210mm circumference comfortably.
Not sure?
If your watch is not listed above, contact us before ordering. We would rather help you get the right size than process a return.