FHF 28

 
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FHF 28

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.

minute wheel bridge

minute wheel bridge

main plate

main plate

FHF 28 dial side

FHF 28 dial side

Technical data

Manufacturer:FHF
Caliber:28
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:
  • lever
  • escape wheel, seconds wheel, third wheel
  • center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:3 hole(s)
Features:SCD
Functions:hour, minute, second
A/h:18000
Size:10 1/2'''
Literature: Flume: 1949 I 47

Usage gallery

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