Hermle FHS Barrel #20 or #21 comes complete with Mainspring CP-M1706H. All FHS Barrels are stamped with a number right on the barrel making it super easy for you to reorder! This number 20 barrel fits Hermle movement FHS 150 strike side and time side, Hermle movement FHS 151 strike side and time side.
Measurements: All in mm
Diameter of the barrel at teeth |
47.5 |
Number of teeth |
68.0 |
Diameter of barrel casing |
41.0 |
Height of barrel |
20.7 |