The FHF caliber 72, which is obviously a direct relative of the FHF 67, is a very nice classically constructed mens’ watch movement.
The center second of this flat movement is directly driven; the ring balance with screws uses a blue Nivarox-1 hairspring, which is still non-adjustable connected to the balance cock. The missing regulator arm gives it a slightly modern touch.
How rugged this movement is, can be seen on the specimen shown below: It survived an amateurisch skeletonize attempt by myself:
|Number of jewels:||17|
Nickel screw balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||2 hole(s)|
Flume: 1962 8|
|Mentioning in literature (years):||1963 - 1971|