Armin Strom AMW21

The AMW21 is an automatic movement manufactured by Armin Strom and introduced in 2021 as part of the AMW family. It features the Gravity Equal Force system with a constant force mechanism, which delivers consistent power to the escapement throughout the running duration. The caliber is produced in-house by Armin Strom and remains in production. Notable watches utilizing this movement include the Armin Strom Gravity Equal Force collection.