The osculating weight bearing is slack, but the movement looks good at first glance.
Watch is running only with the chronograph function engaged.
I tighten the rotor bearing in the staking set.
I take the movement out of the case.
I remove the hands and dial.
The movement is missing the hour recorder spring.
I start taking apart the top chronograph layer.
Down to the last bit of the gear train.
Old mainspring.
I fit the shock jewels and see that the balance moves freely.
I fit a new mainspring.
I fit the setting/winding mechanism.
Base movement back together and ticking.
Very good performance.
I start fitting the chronograph parts.
Almost back together.
I start putting the dial side back together.
I replace the intermediate date wheel!
Movement back together ready for the dial and hands.
Movement goes back into the case.
I fit the osculating weight back in place.
