I'm no expert, but if you want those who might know you will need to post scans of the gold hall-marks on the case and bracelet. They should be either: GP (gold plated), 14k.(.67) or 18k.(.75). Most will tell you a service from an Omega qualified watch-maker with an parts account is best. Your other other issues regarding value will be it's size and 7" bracelet. Maybe best suited as a Woman's dress watch.
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