I found this watch, pretty sure it’s vintage. It may not even be an Omega. It says 14k on the back, assuming it is referring to the gold. It’s got small diamonds all around the middle.
Not an Omega, and not diamonds. Without images of the marks that you say indicate 14 karat, I think I am safe in saying it is only plated. Sorry to rain on your parade. Please show us the marks on the case, inside the case back, and what is inside the case.
The second "Omega De Luxe" this week. https://omegaforums.net/threads/help-identifying-this-please.64422/#post-807394