The BFG Caliber 866 is simple pin lever movement, which at least uses a pinion winding system. It has got no shock protection.
The movement described here is partially skeletonized and you can see the (missing) indirect driven minute hand.
This movement is also available with date indication, using the same caliber number.
|Number of jewels:||1|
Nickel anular balance|
|Balance bearing / direction hairspring:||Counterclockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||1 hole(s)|
|Functions:||hour, minute, second|
Flume: 1962 23|