The Föster caliber 152 is a 10 1/2 ligne handwinding movement from the german manufactury Förster, which was located in Pforzheim.
The construction of this movement is very classic, with a balance with two legs and a direct driven center second. But there are also a few notable anomalies, such as the Incabloc shock protection, the extensive usage of deck jewels and the winding pinion with its conical dents (look at the dial side!).
|Number of jewels:||21|
Nickel anular balance|
|Balance bearing / direction hairspring:||Counterclockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||1 hole(s)|
Flume: K3 19|