A few years ago, I was scammed by a TRF "buyer" out of two Rolexes and $3,800. With the amazing assistance of TRF members, I was able to get both watches and my cash back, but it took a nearly full-time effort to find the guy and cause him enough fear that he actually returned the watches to the police department in Columbia, South Caroline.
Here is the thread. It's long, but the TRF community provides a huge amount of detailed information on how to get a watch back.