Hello!

First, thank you so much for reading this!
I had been searching for my dream vintage Omega for a long time and I finally found it.
So I bought the watch and everything was perfect.
I am speaking of an Omega Seamaster Quartz 1342 from about 1980.

The watch was sent to me by the former owner and the delivery took five days, but when the watch arrived it was working completely accurate. But after the first night, the watch was unprecise like about 20min!!!
I observed the watch for some days now and recognized it sometimes stops or is running slower. A few moments later the watch is keeping the time accurate again. Five days before I picked up the watch the former owner made a complete cleaning of the movement and renewed the battery at a professional watchmaker.
Do you know what that could be? Thank you for your help!


- Jakob

 

I would ask the watch maker about it.

 

Possibly an incorrect size battery was fitted and the new one is moving under the contacts. The original mercury batteries are no longer available and a small spacer is needed to keep modern batteries in place.

There is a recent discussion here:
https://omegaforums.net/threads/battery-spacer-insert-query-omega-seamaster.101867

We do like photos too