I got into contact with Jacobo at
http://www.jrartesania.com, and asked him if he ould make me a black strap with black stitching suited for an IWC deployant I had in my watchbox.
Jacobo was very responsive, and the story continued with me sending the deployant to Spain to ensure a perfect fit. PP'ed the € 78,- ($ 100,-) we agreed upon, and the waiting started.
I had a message from Jacobo with pictures of the strap, for my approval. As the pictures Jacobo sent me were far better than I will ever make, I'll post these for your (and my own) enjoyment!
So, if you order one, all you have to say it is for an Ingy and all will be well!