This is the new Marathon NATO one-piece, military spec nylon watch band. The Marathon NATO watch strap is an original replacement strap for instruments using nylon straps in 16mm, 18mm, 20mm and 22mm widths. This NATO watch band is typically used on navigator and general purpose wristwatches, as well as the wrist compass. The 316L stainless steel buckle ensures years of reliable service without corrosion. Manufactured by Marathon in accordance with military watch strap specification MIL-S-46383B Type II. Also available: Leather NATO and traditional one-piece military issue straps.