Manufactured in 1938, this is a rare Serbian Army design with a Longines Caliber 15.94 movement, housed in a 37.5mm Stabrite Big Calatrava case featuring a tropical dial. It is equipped with the large Caliber 15.94 movement, which was also adopted in the Czech military model. The distinctive Big Calatrava case, exclusive to models with large movements, exudes a sense of weightiness despite not being waterproof. The beautiful black gilt dial, now transformed into a lovely brown hue, showcases a splendid vintage taste.
The dial design follows the Serbian Army model, with prominently large indexes at 3, 9, and 12 o'clock, while the other indexes are arranged in a smaller size, creating a unique layout.