Rare Longines aviation wristwatch from around 1940, with original enamel dial, called "Big Turtle." Fluorescent indexes. Used by pilots of the Czechoslovak Air Force during World War II. Marked, marked and numbered with the Longines brand. Working and entirely original, with patina and signs of use corresponding to its antiquity. Staybrite stainless steel case. Movement with 14 and a half lines and anchor escapement ref. 3582. Rotating bezel. Assigned, numbered by the Czechoslovak army of the time. "Majetek Vojenske Spravy n...." Diameter mm.40 excluding crown. This rare, fascinating and sought-after original watch, produced at the time in a total of only 3,500 pieces circa, among which the assigned ones were really few, has recently been reproduced by Longines in a new prestigious line.