FHF 1156

 
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FHF 1156

Description

The 10 12 ligne FHF 1156 is a very old manual wind movement, probably from then 1920ies. It still reminds of a pocket watch movement, which were ubiqutuous at that time.

base plate

base plate

All important bearings contain synthetic rubies, in total uses this movement 15 jewels, the maximum of that time.

Like on many old movements, the escape wheel is beared under an own cock.

gear train

gear train

The gear train with its expensively executed gears are typical for the early time. The central minute wheel which is directly driven by the mainspring barrel, is followed by the third wheel, seconds wheel and escape wheel.

side view of the gear train

side view of the gear train

The non shock protected screw balance beats contemporarily slow with 18000 A/h and regulates a swiss pallet lever movement. Its precise frequency is adjusted with a long regulator arm and a scale on the balance wheel cock.

lower side of the crown wheel

lower side of the crown wheel

A little oddity on this movement is the crown wheel, which has got two gearings, the normal outer sprocket and a gearings on its lower side, which is connected with the winding pinion.

FHF 1156: Dial side

FHF 1156: Dial side

The FHF 1156 has got a yoke winding system.

On the dial side, it is also stamped as “FHF 1”.

Technical data

Manufacturer:FHF
Caliber:1156
Number of jewels:15
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): none
Balance bearing / direction hairspring:Clockwise
Moveable stud:no
Adjust mechanism:Long regulator arm
Winding mechanism:yoke winding system
Setting lever spring:2 hole(s)
Functions:hour, minute, decentral second
A/h:18000
Size:10 1/2''' (measured: 23,25mm)
Literature: Flume: 1947 27
Inventory number:19002

Usage gallery

unmarked gents watch

unmarked gents watch

This movement and the watch is a kind donation from Klaus Brunnemer to the movement archive. Thank you very much for your support!