Vintage 14k Gold Longines 13zn Chronograph Swiss Watch Watchmakers Estate Rare

Up for sale is a lovely, unrestored, 14k yellow gold Longines chronograph with the 13ZN flyback movement. Straight from a watchmaker’s estate where it sat since the 1960’s. I believe it to be from 1939 based on the serial number. The dial is a pale champagne with applied shiny gold Arabic markers and an outer telemeter scale. All the complex markings and details are clearly legible. The dial has an even patina with signs of age with some spotting, but overall, very charming. Finished off with all gold hands. The 14k yellow gold signed case (34mm x 41.75mm), bezel, and case back are in very good condition with some ever so slight, minor dents and light scratches. The case back snaps tight to the case. Lugs are open holed for easy strap changes. The inside of the case back states “Longines W