Not sure what the original finish was , but it looks like it has been case hardened.

 

Can't say attractive but it's interesting all the way..

 

Not tarnished gold is it ?

Have seen a gold case like that on a longines once before and it polished up to reveal a stunning case.

 

It can be dirt on the gold indeed. I’ve seen it on gold plated cases stored for a long time.

 

That looks great, IMO. Is it a gold capped watch that has tarnished? There was a Rolex (forgot the ref) auctioned off for a fortune not too long ago which had tarnished in the same way.

 

If it weren't for the incorrect crown...nah, just kidding.

 

+1

 

Love it! Looks like an oil can finish

 

That oil quenched look. I take it the "A" crown is for the alarm?