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.
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.
|Number of jewels:||17|
Nickel screw balance|
|Balance bearing / direction hairspring:||Counterclockwise|
|Adjust mechanism:||Long regulator arm|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||2 hole(s)|
Flume: 1952 4|