Founded: 1845 (and relaunched in 1990) | Founding place: Glashütte, Germany | Founded by: Ferdinand Adolph Lange | Current headquarters: Glashütte, Germany | Owned by: Richemont Group | Official name: A. Lange & Söhne Glashütte SA
The A. Lange & Söhne Lange 1 Perpetual Calendar Platinum is the third model in the Lange 1 Perpetual Calendar collection