There are MANY fakes out there. One thing to know for sure as a way to tell is that the Medor is not water resistant. It is one of the few watches that is not, so any Medor watch that says water resistant on the back is fake. This was actually told to me by an SA. Also make sure the buckle says Hermes on one side and Stainless Steel on the other side if you are getting the palladium one.
Having said that, I owned one and just recently sold it. I found myself wacking the daylights out of the car window while I was driving. The large pyramid parts do stick up quite a bit. But it IS a stunning watch and I received MANY compliments when I wore it. It just became cumbersome for me to have to push the winding button and open it just to glance at the time. One cannot "casually glance" at your watch to know the time when wearing the Medor. Those around you will know that you are checking the time.
You can pick one up on the hermes.com website now that is priced below what I paid at Neiman Marcus (I paid $2,025 plus tax in June 2006) and I believe they have the orange/potiron strap. BTW, I sold mine on ebay for just $799 and it was authentic and only worn twice - so one can find deals, just be careful. You could post the ebay item on the Authenticate This Hermes and we can help you from there.