This is a typical midsize-caliber of classical construction, probably from the 1940ies.
It does not yet have a shock protection for the screw balance, and on position “6”, there could be a second hand, if the train was long enough. But in this case, we would have the caliber 250-1 instead.
The 90° angle of the main plate is remarkable. Together with the raw stripes finish, it makes this movement quite visuable appealing.
|Number of jewels:||17|
Nickel screw balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Long regulator arm|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||2 hole(s)|
Flume: 1947 20|