Case measures 38mm lug to lug x 27mm non inclusive of the Crown using Calipers.
How did we decide the Richard had the yellow gold inlay on verticle bezel?
Good question, We didn't.
The Watch matches the other 2 listed as the 'RICHARD' in the database.
The discrepency I see is the Omega symbols on the Bezel horizontals are reversed from how they are depicted on the advertised 'RICHARD'. All 3 examples show this and all 3 match the ad on all other points.
Could this newly discovered ad be the reason Our 'RICHARD' database examples do not quite Match the ad?

I'm sure that you can offer a clearer explanation for what you believe an ad for an Ambassador (which you claimed in another thread really shows a Lone Eagle) has to do with the Richard--either the ads or the supposed examples.
The subject watch's dial does appear to more closely match the Ambassador ad on 2 points.
1- The Bulova signature does not appear to line up with the bottom of the 10 & 2 as in the Richard ad.
2- The overall shape of the dial appears more elongated compared to the Richard.
Granted, both ads are artist's renditions and the case details are not clear in the Ambassador ad.
Neither ad mentions a 2-toned case.
I'm searching for a reason as to why the 'OMEGA' symbols are reverse on the Watch examples from what is shown in the 'RICHARD' ad.
Artists rendition is the current assumption.
no biggie