Heinrich Moser, born in Schaffhausen in 1805, established a watch factory in his hometown in 1848 and became one of its great industrial pioneers, co-founding SIG and building the first hydroelectric power station on the High Rhine. After his death in 1874 the company was split among its managing directors; the Russian business was expropriated in 1918 after the October Revolution.
In 2002, Moser Schaffhausen AG was founded by Dr. Jürgen Lange together with Moser's great-grandson Roger Nicholas Balsiger, and the brand was formally re-launched in 2005. Since 2012 it has been owned by the Meylan family's MELB Holding Group; its 2006 Perpetual Calendar won the Geneva Watchmaking Grand Prix, and it manufactures its own components.