Hey Guys...This appears to be a pretty decent deal on an Oris rubber strap w/clasp.
Amazon.com: ORIS Williams F1 Chrono Genuine Black Rubber Watch Band Strap Ref.4 27 01: Watches
A little odd, in that it gives a 4 27 01 reference number but gives the specs as 11mm/24mm. Listed with free returns, so I took a chance and ordered one to try on my TT1.
I'll get it Thursday and update...figured it might be of interest.
-Mark in St. Louis