The frame reproduces a design from Ervin Piquerez SA from 1968 that was used by more than half-a-dozen brands such as Breguet, Bucherer, Heuer, Lemania, Rodania, Sinn, Breitling, and Wakmann.
The M3440 is in most of its aspects a faithful reproduction of the vintage EPSA case #817 military-issued Lemania Chronograph. With similar lugs, and a standard rotating bezel, the case of the modern watch is a nearly identical to the historical model’s except for a few distinguishing caseback markers common to the “Viggen.” Similarly, the dials of the 1973 and 2018 watches are also very similar, with the fonts, the sizing of the hour markers, the outer minute ring, and subdials all more or less identical The only differences are in the hour and minute hands, which are slightly thicker in the modern examples, and the placement of the subdials: on the vintage model they are closer to the center of the dial. Outside of this aesthetic change, the M3440 benefits from modern production techniques in movement technology and finishing— to be expected, as Siduna is marketing the new model as top-of-the-line rather than the utilitarian tool watch that Lemania produced.
@ 42mm minus Screw-down crown,
Modified ETA 7750 25 jewel self-winding chronograph.
10 Bar ISO 22810 Water-Resistant.
Satin PVD black steel bezel insert with luminous numerals - based on a 1973 military standard from the Swedish Air Force (Svenska Flygvapnet).