FEF 350

 
FEF 350

FEF 350

Description

The FEF caliber 350 shown here, was launched in the early 1950 and was used e.g. in an “Uweco Geneve” Watch, a “budget” brand of Universal Geneve.

It uses a rather modern double decker construction with concentric minute- and second wheel; the latter one is driven directly and runs, as the third wheel in a pressed-in chaton. The escape wheel in beared in two cap jewels, so, you see, the jewelling of that movement shows its high quality.

The screw balance is secured in two Incabloc shock protections; the hairspring length is adjusted by a long regulator arm.

Of course, on the dial side, you’ll find a yoke winding system - nothing else would have matched this quality movement.

base plate

base plate

After more than fifty years, where this movement was heavily used (and even abused, as you can see on the watch below), it required a full service with cleaning and lubricating. But only after the escapement pallets, too (only the exit pallet, according to Jendritzki, but this pallet three times during one revolution of the escapement wheel), it ran find with an amplitude of more than 180° when laying on the dial.

FEF 350 dial side

FEF 350 dial side

Technical data

Manufacturer:FEF
Caliber:350
Number of jewels:17
Escapement:Pallet lever
Balance types: Nickel screw balance
Shock protection(s): Incabloc
Balance bearing / direction hairspring:Counterclockwise
Moveable stud:yes
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:2 hole(s)
Features:SCD
Functions:hour, minute, second
A/h:18000
Size:10 1/2'''
Literature: Flume: 1952 4

Usage gallery

Uweco Geneve gents watch

Uweco Geneve gents watch

related movements