The Continuing Quest for my First Omega

For some time, I have been searching off and on for a vintage Omega, but I'm not quite an "official" Omega owner. I am inquiring about a recent acquisition that I am checking out during the examination grace period. According to the seller, this is a 1964 version Omega automatic 165.002, 550 caliber. The watch was recently serviced and has a new crystal. When I received the watch, it appears that the hands were replaced as well (something not mentioned in the auction). It really is a quite handsome watch, but I want to be sure of the authenticity before committing to accepting the purchase ($495).

When I went to the Omega website, I was unable to find this specific model. Using the search filter for the 550 caliber, the only thing that is remotely close is the International Collection 1964, but it is listed as a gold filled case. Searching within the 550/552 calibers, they are Seamasters, which is not shown on the watch face of this particular model. I have attached some photos of the face and crown for reference. Any input from forum members would be greatly appreciated. Thank you for helping a newby!

Why do you think the hands have been replaced? I guess they do look quite new, is this a deal breaker for you?

The hands aren't a deal breaker, as long as they are correct. They are shiny and the lume is bright, compared to the non-functioning lume on the rest of the watch. So, this is a Seamaster even though there is nothing indicating that on the dial or case back?

Aside from no Seamster designation on the dial, the link that you provided fits my watch to a "T" except the caliber in mine is a 550, not a 552 as shown on Omega's website. Any thoughts?

A couple more pics. Is this a bit overpriced at $500?

I think this looks like a nice watch for $500.

It looks "dead" to my eyes, I think you could save that money and find a better example.

"Dead" in what way? Something amiss mechanically or just kind of a plain-Jane omega?