Well, let me first say that I am not a collector of IWC military watches. I have admired them over the years, but never owned one.
Having said that, I would be very concerned about the dial on the one linked. I have no confidence that it is original, and in fact suspect that it is a full redial.
So, while I am inclined to defer to the judgement of those who have more experience with the model, the appearance of the lettering alone would prevent me from considering a purchase of the watch, and I would minimally suggest that you demand bigger and better images.
If a seller is unable to provide clear, high-quality images of an expensive watch, then it is generally wise to walk away.
Regards,
Tony C.