It is highly unlikely that you will find a match in the Omega Vintage Database. This looks like a US market Omega with a domestically made case. These were generally either gold-filled or solid 14K gold.
The models were unique to the US market and mostly unknown to the Swiss, who simply sold finished movements to their US distributor, Nornan Morris Co.
If you take the watch to a jeweler, they should be able to open it up and then you can take pictures of the movement and the inside of the case back. From there, you might be able to use the model number to Google similar watches. Although sometimes, Omega only produced a few of each dial style.
The serial number on the movement will also help to confirm the production year to 1958 or just prior.
Hope this helps,
gatorcpa
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