Description
The FHF caliber 28 is an interesting mens’ size movement from the mid last century.
Since this movement uses a direct driven center second, but was constructed in a classic way with a large minute wheel, it had to be made in two layers, which led to a large height. Be the slanted shape of the bridge gives it a very pleasent look and the two gold-toned chatons made it technical superior, too. So, it’s easy to say, that FHF belonged to the upper league.
The balance is, a bit unusal for FHF, beared in two three-leg shock protection systems, like Trishock.
On the dial side, you can see, as usual on better movements, a yoke winding system, a cap jewel for the anchor wheel and a preparation for alternative shock protections.
Technical data
| Manufacturer: | FHF | 
| Caliber: | 28 | 
| Size: | 10 1/2''' | 
| A/h: | 18000 | 
| lift angle: | 52.23° | 
| Number of jewels: | 17 | 
| Escapement: | Pallet lever | 
| Balance types: | Nickel screw balance | 
| Shock protection(s): | Incabloc Ruby-Shock | 
| Balance bearing / direction hairspring: | Clockwise | 
| Moveable stud: | no | 
| Adjust mechanism: | Long regulator arm | 
| Construction: | 
 | 
| Winding mechanism: | yoke winding system | 
| Setting lever spring: | 3 hole(s) | 
| Features: | 
 | 
| References: | Flume: 1949 I 47 | 
 
     
     
     
     
        