I wont say I know for a fact, but I highly doubt that the whistle are as rare as the OP-523. I see them everywhere. Oceans 11 came out in 2001. Theyre probably a model from 2000. OP-523 I belive were a model from 98. Although I am totally against purchasing replica shades, I must admit that the replica MINI MOTARDS that are all over the internet for about 20-$25 bucks, are almost identical to the aunthentic. If you dont mind missing out the 100%UV extra strong Polycarbonate lenses, and the strong more durable legs, then the replicas are the way to go. The replicas are almost the exact same size, and shape as the authentics. The difference in lense size almost not even worth mentioning. The replicas are a bit bigger. Of course, the colors are nothing like the Mini Motards. The Authentic mini motard that Pitt wore, the ones I own, are clear with gradient grey, but they have a mirror coat. Theyre actually a bit small for me. Theyre still bad ass tho. I also have the Burberry 8933S, The Dita Pusher in White Gold with Gradient brown lenses, the Prada spr54f with the green legs and grey mirrored lenses, the Smith MHC, and The Dita Pusher in Brushed silver with Grey lenses. I had the Ray Ban 3025 003/32 with the silver frame and grey gradient lenses, but I gave them to a friend.