The dial has a few stains, that I can live with. The dial looks original to me. I have no clue about the buckle. Can I get opinions from the experts?
From a value/desirability standpoint, gold plated cases like this are at the bottom of the Omega food chain. With the worn crown and tired dial perhaps $250-300 US.
Not impressed by the plating. Movement got parts changed. The worn crown should be replaced. Dial is not very attractive.