why is there a white dial and black dial?
I'd send it back unless it was very, very cheapThe crown is an aftermarket replacement. The watch would originally have had an Omega-signed crown, possibly of the segmented type. It's very common to find such generic crowns on Omega watches from this period as the originals have become more difficult to source. Absolutely correct
The black dial could be a redial. It's quite common for vintage watches to be redialled in black as it is considered to attract more interest. Note that the lume dots appear to be missing from the semi-circular ends of the indicies where they would normally be, even if degraded. The dial is redialed. There is obvious paint on the batons
The buckle is dubious. There's many non-genuine ones around. The buckle is counterfeit
Only you can decide if you are OK with a re-done dial and hands (both the hands and dial originally had lume, both were removed and painted black.I paid $450