Apologies if this has already been brought up, I did a search but couldn't see anything.
There seem to be a few cases of watches (pre-Moon Speedy Pros mostly) with a BIN of GBP 1000 popping up on eBay, all from sellers based in Ireland and with (very) low feedback for the usual very low value purchases. Someone on another forum just flagged up another recent sale, funnily enough another member had bought the watch not long before, it never arrived and PayPal refunded their money:
http://www.ebay.co.uk/itm/Vintage-Omega-Speedmaster-Watch-/251048454757?pt=UK_Jewelery_Watches_Watches_MensWatches_GL&hash=item3a73a76a65#ht_2553wt_1330
I suspect you're all savvy to the ways of eBay scammers but just in case...