rolex precision , how much is it worth???

[redbeard]

i just found an old rolex precision made in 1951. it runs but it is not in good shape. i put it on ebay. does anybody have any helpful hints about how i can protect myself , the seller from being scamed by someone who is tring to buy it. here is the link if you want to look at the watch http://cgi.ebay.com/ws/eBayISAPI.dll...6461&rd=1&rd=1 let me know what you think, and are there some countrys i shouldnt ship to. i am new to this and i dont want to be taken advantage of . thanks. this is my first post to the site