The rescue pilots from the German Navy were looking for a chronograph which would enable calculation of flight speeds. As a result, the S.A.R. Flieger-Chronograph was born.
https://www.muehle-glashuette.de/en/wristwatches/functional-wristwatches/sar-flieger-chronograph/
Shop & Details the S.A.R. Flieger-Chronograph here:
https://www.muehle-glashuette.de/en/wristwatches/functional-wristwatches/sar-flieger-chronograph/
