This is a vintage 620 Omega gentleman's wristwatch dating to the 1950s/60s. The bezel and back of the case are rendered in fine 14K yellow gold. The silver tone dial is marked by sleek non-numeric indices and the 17 jewel movement is numbered 24623983.
The case diameter is 25mm and it is 34mm from lug end to lug end. The weight without the movement is 10g.

Light surface wear to the case and crystal. The watch does not currently run, but all in the movement looks good. It is most likely in need of a cleaning. As with all mechanical timepieces, this watch will require regular cleaning to maintain running condition.