It’s like the bridges have been sanded... the movement number, the omega/jewel/Swiss made seems like it’s been sanded.
but my money is UK sold gold watch. I thought OA was used on some UK cases. But I’m not 100% sure.
I’m also pretty sure that 9k was never made by Omega. Locally cases watches in gold are somewhat common to get around gold tariffs in that time period.
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