The great Swiss tradition of precision watchmaking, combined with a love of the sea and diving, were the two factors that led Charles von Büren to work exclusively on the construction of professional divers watches from the early '50s. Initially the "Squale" mark appeared on the cases of Swiss watches of various makes, as a sign of fine production and a quality symbol.
Then, in the '60s, von Büren started to produce watches that also had the Squale mark on their dials, starting the brand’s institutional and commercial history.
During the following decades, thanks to its watches' impressive reliability, safety record and international prestige, Squale sponsored a large number of international sports competitions and was always worn by top divers; including Jacques Mayol, Enzo Maiorca and Giuliana and Maria Treleani.
It was during these years of sporting successes that Squale also introduced its first 1000 meter diving watch with Plexiglas glass and snap-on dial, on the "Master".
Squale continued to produce for other brands and started to supply the elite corps of a large number of armed forces, including the parachutists of Italy's Folgore Brigade and the Italian Navy's Diving Corps. All this has made Squale synonymous with quality and the benchmark brand for divers' watches internationally, a status it has enjoyed for several decades.