FEF 250

 
FEF 250 | 17jewels.info - The Movement Archive

FEF 250

Description

This is a typical midsize-caliber of classical construction, probably from the 1940ies.
It does not yet have a shock protection for the screw balance, and on position “6”, there could be a second hand, if the train was long enough. But in this case, we would have the caliber 250-1 instead.
The 90° angle of the main plate is remarkable. Together with the raw stripes finish, it makes this movement quite visuable appealing.

FEF 250: FEF 250 dial side

FEF 250 dial side

Technical data

Manufacturer:FEF
Caliber:250
Size:8 3/4'''
A/h:18000
lift angle:52°? 52.23°?
Number of jewels:17
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
Construction:
  • lever
  • escape wheel, seconds wheel, third wheel, center minute wheel
  • mainspring barrel
Winding mechanism:yoke winding system
Setting lever spring:2 hole(s)
References: Flume: 1947 20

Usage gallery

FEF 250: Orator ladies' watch

Orator ladies' watch