A Vintage Solid Gold Omega - What Would You Recommend?

Watch collecting's not the primary collecting hobby here but it sure is habit-forming. I want to begin a study of various Omega models online over some months with a view to acquiring a 1940s to early 1960s Omega, preferably featuring an 18k gold case. I really like many of the earlier "unnamed" styles that predate the Constellation, Seamaster, De Ville models that I've seen online. I don't want an Omega in a South American-produced case, preferring an Omega cased watch.

I seem to be drawn to the styles offered in the 18k models more often than the 14k models. Were the 14k models primarily produced for the U.S. market? There seems to be little difference in price between 14k and 18k models so one assumes the "collectibility" is about the same.

I have several rose gold watches which I enjoy. I've read that white gold is most desirable, followed by rose gold and yellow gold. Any opinion on the color of the gold or is it mostly a matter of taste?

Are these older gold Omegas other than the named models worthwhile to collect or would the named models be better choices? The three Omegas on hand here are stainless steel models, being a De Ville, a Seamaster, and a Constellation, and all being late 1950s/early 1960s production.

Gold-filled does not appear to be a good value. Right?

Any thoughts, recommendations, and photos of gold Omegas would be appreciated.

Omega Centenary 2499/2500, the 2500 is the larger version of the Centenary. That or a nice 30T2 RG. Here is my 2499.

Yea! Thanks. I'll keep an eye on it.

The style of numerals used for the "12" on Kyle L's watch are particularly appealing.

or one of these

Hoi's examples being a higher degree of difficulty dive than the Centenary 😀

Looks like a wonderful Zenith.

I'll take the one on the left Hoi.
Wrap'er up for me please 😀