you are correct-it was refinished....i am doing some research on dial variations of ref. 3091. I found one that was black, some that were done with color variations..etc...So i might send it back to Longines to have them redo the dial per original specs, but i wonder how good their quality of work is now vs 90 years ago...In not so distant future the refinished dial will become a vintage dial with patina anyway...Again, someone like you will be sitting around with a high powered loop analyzing the patina of the dial vs the patina of the rest of the case etc...Others will be more concerned about the functions of the watch and how well it runs...etc...