Finding an original 13ZN is already very hard... but an untouched example with special case and dial is like finding a needle in a haystack! This example ticks all the boxes... it has a very special art-deco style two-tone dial with grey outer Pulsations scale and blued hands. The special 35mm step-lug case is unpolished and it even retails it's original glass (not a plastic crystal). It bears ref 4571 & the 2299 order number was also found in the Longines files. The Extract states it was sold in 1940 to Uruguay. Movement is off course Longines Flyback 13ZN which has just been serviced. It came with a steel period stretch bracelet but I'll also include a grey pigskin strap mating the dial. Unique opportuity to buy a very special 13ZN!!!