Movement looks to be in good condition.
Dial has had some water damage at one point.
Dial and hands removed.
I start taking the movement apart.
The non shock protected balance cock is taken apart for cleaning.
Movement coming apart nicely.
The intermediate driving wheel is push fitted onto the forth wheel arbour.
Underneath I can see a jewel that has come out of it’s hole.
I fit the jewel back in its place
Here you can see the gear train layout.
The old mainspring before cleaning.
All the parts are cleaned and ready to be put back together.
The mainspring oiled and put back into the barrel.
Balance assembly put back together and I see that it moves freely.
The gear train is out back in place.
With the base movement back together I can start putting the chronograph mechanism back together.
I enjoy working on Lemania chronographs!
Chronograph back together. Note that both minute recorder and second recorder are driven independently from each other.
I tidy up the dial the best I can.
Movement ready for dial and hands.
Movement back into the case looking great.
Watch is preforming great also!
Great looking military chronograph!
how is the minute counter driven?
There is a intermediate pinion that goes from the gear train up to the minute recorder that you cant see in the photos.
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2 Responses to Service: Lemania HS-9 calibre: 15CHT
how is the minute counter driven?
There is a intermediate pinion that goes from the gear train up to the minute recorder that you cant see in the photos.