Dresden-born Grossmann was a talented watchmaker and visionary, traits recognised by contemporaries like F. A. Lange. In fact, it was Lange who convinced Grossmann to set up his own atelier in Glashutte. In 1878, Grossman also established the German School of Watchmaking. The school’s stature rose quickly, thanks to big names like Alfred Helwig – inventor of the flying tourbillon – who taught there. Grossmann’s manufacture closed after his death.