Hi, The dial may not be original : the logo seems small a bit too low and not a common shape, the font in italics was no more used on caliber 30sC, unless I'm wrong. Is the case marked Omega? It looks like a mickel plated one and that would not be Omega's standard of that period. But some watces were cased in non Omega cases so it could be the original case even if not Omega produced.
Hi, A nice pair of CK 785 (Foibos). Mine says hello : The Foibos has a 3Omm diam case but a 26.5 caliber. When I was mentionning 30mm, I was referring to the 30mm caliber which I suppose, are in the watch shown in the initial post. As it has a central second, it can either be a 30mm or a 23.4SC. Both are later more modern calibers than the 26.5. 30 SC was created in 1940, unless I'm wrong, and 23.4 in 1936 in the Medicus case. Both had the Omega name written with the modern font on the caliber plates, where the 26.5 still had the art nouveau one. I don't remember seeing any 23.4SC or 30 SC with an original dial having the older italics lettering. For example, on the first 23.4SC model (1936 Medicus) : or here on the first Naiad model with 23.4SC : Same for the 30 SC, here an example on a 1944 CK 2292 : or here an earlier one :