A client has sent in his Junghans power reserve watch. It looks to be in pretty good condition, but it’s not running. Parts for this watch will be close to impossible to source, so I hope it goes well!
Movement looks to be in great condition.
I remove the oscillating weight and here you can see the autowinder mechanism.
All the autowinder wheels look good!
One luminous compound marker has come loose, but the rest of the dial is excellent.
Dial removed and you can see the power reserve disk.
Everything is actually very clean and nice!
I start taking out the winding and setting mechanism.
Pretty funky barrel construction!
Underneath the autowinder plate you find the base movement. Very funky central second pinion tension spring!
You might be wondering why the watch was not running as everything looks clean! The oil has turned to glue… I have cleaned away what I can with pegwood and hopefully the cleaning machine will do the rest.
Mainspring in the barrel.
The movement is cleaned two times and it has removed all the old oil. Now it is ready to be put back together.
I have greased and fitted the old mainspring.
I oil and fit the shock protection jewels. Now the balance is moving freely again!
Gear train back in the movement.
Base movement almost back together.
I now start putting together the power reserve mechanism.
The lower barrel bridge in place.
I fit the winding/setting mechanism.
Movement almost back together.
Movement back together and ticking!
What a difference from not running at all!;)
I reenforce the luminous compound on the dial and add the missing marker. The hands also get new compound matching the dial.