i have thought about purchasing a 18k seamaster automatic for a while now and i finally found one i like.
but how can i be sure its 18k do i need the seller to open the case?
furthermore the price is 1300 euro.
i think the dial is all original and in great condition.

 

Should be stamps on the underside of the lug that could tell you what material the case is made of, but would probably need a loupe or macro photos to see clearly which figure is on the stamps.

Otherwise opening the caseback would be easiest to determine if its 18k or 14k, maybe the seller can take it to a watchmaker to have it open?

 

Looks like a stamp on the upper right lug in the first photo.

 

Hi

As @efauser has pointed out it looks like it has the gold mark on the lug.

 

it actually does, thanks. but i think i will ask the seller to open op the caseback.
what do you think about the price?

 

It's about right for a 18k Omega. You could probably find one €150-200 if you put in some leg work and are willing to wait. The inscription on this one will put of a lot of people.

 

Hi again

Personally I think it looks nice and sharp. Most likely the watch wasn’t used a lot. It has the original omega glass. Does it have an original crown and strap? Possibly an original gold buckle? Does it have a recent service history?
On the down side(for many collectors) is the engraving on the back. Personally I don’t mind it and I would consider it a part of the watches history.
I don’t think the price is that bad for this watch. So if you don’t mind the engraving I think it’s a nice buy. I’ve got the de Ville version of this and I really love the inlaid onyx markers, beautiful quality.

 

thanks a lot for a great answer.
the service history is unknown and i will ask about the crown, buckle and strap.
i have just received pictures from inside the caseback, which confirms its a 18k