As promised, here is my scan, not as good as the one I originally posted, which was taken by Leigh, who traded the watch to me. (My sentence structure is as lame as my scans.) This is an aftermarket "tire tread" rubber strap, a design taken from the Chopard Mille Miglia strap. THough not manufactured my Chopard, it is thick, comfortable, and pure rubber, with a nice gold-plated deployant, and I'm very happy with how it goes with the watch. With this strap, I wear the watch constantly; it will be interesting to see if I feel the ned to switch back to the original-issue croc for dress.