Can anyone help me figure out the model and time period for this watch? It belonged to my grandfather who died in 1971. My guess is 50's-60's? When did Omega make their first automatics? This is an auto as you can see. Also on the back, it notes 10k gold. Do you think this would be sought after? Has some scratches but not bad. Runs very accurate but the reserve seems like only 8-12 when not worn. Thanks for any help!