Hi, I'm wondering what model this vintage Omega with plain dial is? I believe it's from 1960's or late 1950's, am I right?

Thanks!

 

Few more pics of the watch. It doesn't say "Swiss made" on the dial so could it be fake?

 

bad redial, 60's, cal 6xx

 

Open it and in the back you will find the Ref. of the model but I also tnink is a redial....

 

Thanks for your opinions! I can't open the watch because it's for sale (and not mine). I was thinking to buy it (200 euros), but maybe it's better to pass.
Does anyone know has there been any models around 1960's without model name and/or that "swiss made" text written on the dial?

 

Redial ,save your money and take your wife or GF out for a good meal you will get better value than buying this watch trust me .