I have an Omega Seamster Quartz 120 Watch I purchased 20 years ago or so on Auction for sale here .
After I purchased it I think I wore it two or three times and then I put it away in my safe and it's been there for a long long time.
Take a look at the pictures any questions go ahead and ask I can answer your questions.
The watch is not working at this time , it's just been stored away.
I recommend having it serviced .