im not overly worried about the crown, if i can get this id get it properly serviced anyway with a new crystal and crown. Thanks for the feedback guys
Unless your watchmaker has access to old stock Omega Crowns, the replacement will look the same as the one that's on it now.
So i ended up winning this one, i suspect i overpaid as i got run up at the end, then again there were a LOT of people bidding. Good old eBay