This skeleton movement was put into many better skeleton watches around 1990. It is a classic constructed, very flat handwind movement, which was produced until 1982. Its direct successors are still made, was ETA 7001.
This movement was transformed by machine into a skeleton movement. It slowly beats with 21600 A/h, and it only misses a screw balance to be absolutely perfect.
On this movement you can literally see the time. Very nice!
|Number of jewels:||17|
Nickel anular balance|
|Balance bearing / direction hairspring:||Clockwise|
|Adjust mechanism:||Hairspring key|
|Winding mechanism:||yoke winding system|
|Setting lever spring:||2 hole(s)|
|Production period:||1968 - 1982|
Flume: K3 25|
|Mentioning in literature (years):||1968|