In the late 1940ies, Kaiser launched their family of 10 1⁄2 ligne pin- and pallet lever movements. Over the times, the base plate was changed in details, and also the names of the movements. How far the caliber K9 and the caliber K48 are identical, is difficult to say, however they only differ in small details. The biggest difference is the balance wheel bearing - the K9 uses a cone beared balance. Each movement was available with different features, without seconds indication, with decentral seconds, with center seconds and also with date.
The jewel-less base plate of the K9 shown here has got four flaps in 90° angel, with two of them contain bearings for the dial screws. Compared to the K48, the flaps are less overhanging.
We have the classical gear train of a pin lever movement with directly driven center minute wheel, fourth wheel, seconds wheel a 6 o’clock (which could carry a decentral seconds hand on the dial side) and the steel-made escapement wheel.
It’s also no surprise, that the Kaiser K9 is a pretty high building pillar construction.
The balance is flat, without screws and cone beared. Bit beats with 18000 A/h. The only bearing jewel of this movement is the upper balance wheel bearing.
The Kaiser K9 uses a rather simple, but well executed ratchet on the dial side, a pretty familiar construction on movements with a rocking bar winding system. The ratchet itself consists of a rather large pawl and a spring.
On the dial side, you can easily spot the rocking bar winding system and the ratchet, which is located below the black bridge. The ratchet wheel is only plugged and not secured by a screw.
The way, the dial is mounted onto the movement is a bit odd: At 6 and 12 o’clock, there are two flaps, which hold the dial screws.
|Number of jewels:||1|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Long regulator arm|
|Construction type:||pillar construction|
|Winding mechanism:||rocking bar winding system|
|Setting lever spring:||3 hole(s)|
|Size:||10 1/2''' (measured: 23,2mm)|