In the lexicographic order, the Kienzle 051N53 is the final movement of the 051/51 series. This movement debuted around 1960.
Like its relatives, this movement also has got a rugged pointed staff rin balance and zero jewels.
It is made for maximum of ruggedy and low costs and therefor it is of course no real precision instrument. You can easily observe this for example on the construction of the balance cock: The tiny screw above the minus sign adjusts the bending(!) of the balance cock and so controls the bearing height of the balance. A quite funny and simple, but efficient mechanism!
The rest of this pin lever movement is standard: All gears are below one big three-quarter plate, only the mainspring barrel can be released seperatly by removing its axle screw.
On the dial side you see the rocking bar winding mechanism; the click spring is below the dial plate.
Nickel anular balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||rocking bar winding system|
|Setting lever spring:||3 hole(s)|
|Size:||12''' (measured: 26,4mm)|
Flume: K3 72|