This is a genuine Omega NATO CWZ007891 watch strap, made from durable polyamide in blue with thin grey edge stripes. Designed for Omega watches with 21mm lug width, it comes with the original Omega stainless steel buckle for a secure fit.
If you're unsure whether this strap will fit your watch, or if you have any other questions, feel free to email me at Sales@TheWatchLink.co.uk. I'm happy to help!