What to look for in a James Bond Nato watch strap

I'm planning on getting a Nato watch strap for my IWC.  For many decades, everybody thought that James Bond wore something like:

I really like this design which is readily available from several sellers on ebay for $10-$20.

With the advent of Blue Ray we were astonished to discover that the Bond Nato watch strap actually looks like:

Corvus is the only company selling a replica of the James Bond Nato watch strap as seen in the movie.  Price is about $40.

Here are some articles worth reading:

Mil-Spec for Nato watch straps: Ministry of Defence - Defence Standard 66-47 - Strap, Wrist Watch

Bond With Time - The Wristwatches of James Bond

James Bond's Watches

James Bond's watch was not always stylish

In Search of the Real James Bond Watch Strap

Will the Real James Bond Watch Strap Please Stand Up?