With the Extract from the Archives of Longines, confirming that the present watch was invoiced to the company's agent Guth, Czech Republic, on 23 January 1935. Furthermore accompanied by Charles Cikhard's soldier service book dated 1944, personal image and Czech retired partisan book.
Such Longines aviator's watches with bi-directional revolving bezel were used by the Czech military just before the start of World War II.
For further descriptions and illustrations of this type of Longines watch, see Longines Watches by John Goldberger, pp. 120-121 & 124-125 and Military Timepieces - 150 Years Watches and Clocks of German Forces by Konrad Knirim, p. 374-375.