One of my all-time favorite Omega dress watches from the 1950's, Constellation deLuxe model.
Check out the lugs on the yellow gold version, that's what they should look like on an unmolested example.
Very heavy with the brick bracelet, you know something is on your wrist.
Both with Cal. 354 bumper chronometer movements.
Top photo is a scan of the page out of a 1957 Omega Catalog.
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