No I really doubt it. I'm pretty sure I could source another one for way less than $750
I'm not sure what the problem is. Here are 4 pics of Omega watches from ebay that I bid on (none of which I won), and each of which I think looks better than what you posted: The prices at which these Omegas were won range from $200 - $350. I really don't think authenticity is a problem. Then again, I know very little about watches, and am pretty stingy when it comes to spending. Hence, the fact that I lost all auctions. But, man, I really wanted 1 and 4 especially, and number 3.