After WW II, mens’ form movements were often used, but only for a short time. Among them, there is the Uwersi Caliber 57/12 a probably late speciment of these movements. It uses 25 synthetic rubis, which is really very, very much. Many of the jewels are only cap jewels, some of even on position where are no gears at all (at position “7”).
The advantage of the form shape was, that a very large mainspring barrel could be used, the disadvantage is, that there was a lot of unused space, you can see on the lower left part of the movement.
Besides that, the movement uses a screw balance, which runs in rare Farr-II shock proection system, and an indirect driven center second hand. Due to the size of the movement, only a tiny date disc with small letter could be used, and there was no quickset feature for the date.
|Size:||8 3/4 x 12'''|
|Number of jewels:||21|
Nickel screw balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Long regulator arm|
Flume: 1947 49|