You might not be able to get the exact strap, but there are certainly numerous aftermarket straps (from low to high end) you can easily get. The strap is more than likely held in by a spring bar, and the while there are various widths, they are standard widths, ie 20 or 22mm etc… especially any older mechanical watch, will absolutely have the ability to interchange the band. And if it’s not a spring bar but a solid fixed piece of metal, you can use a nato style strap or something similar.