
15.05.1949 - Patent for fine adjustment by changing the moment of inertia of the balance wheel.
31.12.1951 - first time use in watches.
Application: Tomasz Jakubas
Other records: Timeline of Watchmaking Innovations
15.05.1949 - Patent for fine adjustment by changing the moment of inertia of the balance wheel.
31.12.1951 - first time use in watches.
Application: Tomasz Jakubas
Other records: Timeline of Watchmaking Innovations