Hello all, I ask your help about this Longines of which I do not know much. I did not find a clearly visible reference on the movement, this one has the serial number 7.467.151 which dates from 1945 from what I could find. Moreover, the case has no hallmarks inside the case back, except PGF engraving. I know that the watches intended for the French market were nested in France and that PGF was a manufacturer of gold case for Omega or Longines among others ... But what I find surprising is that the case has no hallmark "Longines". Is this correct according to you? The dial seems original (the foot of the dial is not white among others) but I'm really not a specialist of Longines so I would like to have your expert opinion. Thanks a lot for your help !!