This is a beautiful old-style swiss movement with the old Inabloc shock protection type, which is pretty rare to find nowadays.
This movement is adjusted in three positions and is unmarked, but a fellow collector identified it.
|Number of jewels:||15|
Nickel screw balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Long regulator arm|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||3 hole(s)|
Flume: 1947 32|