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·I have never seen such FOIS combo before, which has Omega's black alligator strap attached on it. Black one belonging to the Speedmaster Professional Ref. 311.33.42.30.01.002. Original FOIS has brown leather strap without folding clasp. I would be rather careful to buy this particular time peace. In generally Omega FOIS is really cool model and I'm waiting to get such on my collection

