My best guess is 1966 but any info appreciated. This was my grandfather’s watch. Automatic movement and keeps perfect time.

 

If you can provide shots of the back of the watch, the inside of the case back and clear movement shot with serial number. We can answer that question.

Did your grand father spend time in Germany?

 

Thank you. I'm concerned about opening up the back since I don't have any watch repair tools and wouldn't want to break anything. Yes, he was a sales rep and I believe travelled a lot in the 60s and 70s. Any insight from just the face and crystal? I don't see too many of these square Omegas.

 

It’s not that easy sry. These square watches are not well described on the internet and sources are incomplete.

From pictures provided we can’t even verify it’s real.

 

If you really want to know the reference and year, have a watchmaker open the case and take some photos. Otherwise you will only get opinions about the dial.

 

I know literally zero about these types of watches but surely that's a redial at best?

 

Exactly - and seeing as the dial has been refinished it's necessary to see the internals.

 

Thank you. I'll have it opened up and post the photos. What makes you conclude the dial was refinished?

 

The printing is sloppy and uneven.

 

It appears to be an authentic reference 161.014, cal 671. See photos. 1966?[ATTA CH]580384[/ATTACH]

 

Correct - the reference number is 161.014 with a caliber 671 having a serial number of 23,502,144 which puts the production date around 1966.

 

That's an interesting compact automatic movement caliber that you don't see very often.

 

The caliber 671 is commonly found in the Seamaster DE VILLE mid-size ref 165.004.