Steve, that sucks.
A 3 day, or 7 day return policy might sound good, but who can get a good examination in such a short time.
I might suggest to others who buy off of Ebay, to contact the seller and request that the watch be sent straight away to a RSC for an evaluation, and the expense (~150.00USD) would be the buyers, if the buyer were the winning bidder. This would definitely help in a PAYPAL dispute if the watch is a fake, or worst - STOLEN!
Steve, I hope the expense of rejuvenating your Tudor is minimal, past the normal service costs!