Who's started watch repair?

pascs · May 30, 2020

Todays project, spare 861 😁

This morning....

After cleaning, oiling, fitting new main spring and replacing a bent 4th wheel, its back together.

Archer · May 30, 2020

pascs
After cleaning, oiling, fitting new main spring and replacing a bent 4th wheel, its back together.

Did you fully disassemble it before cleaning? If not, the is certainly recommended.

Cheers, Al

pascs · May 30, 2020

Archer
Did you fully disassemble it before cleaning? If not, the is certainly recommended.

Cheers, Al

Disassembled a fair bit more than in the photo but I'm always nervous to work on a movement like the 861, so I try to work on a section at a time so I dont get lost, my skills are not that great 😁 .The coupling yoke and chronograph parts also removed and cleaned.

Found that the chronograph runner has some minor damage as does the hammer so they will need to be replaced at some point, and the pusher stem seems to be sticking when resetting the chronograph, the pusher stem in the final photo is a from a 321 I think which works ok, so I'll need to see whats going on there.

Anyway a bit of fun more than anything but it will be for a project Speedmaster at some point

JwRosenthal · May 30, 2020

pascs
Disassembled a fair bit more than in the photo but I'm always nervous to work on a movement like the 861, so I try to work on a section at a time so I dont get lost, my skills are not that great 😁 .The coupling yoke and chronograph parts also removed and cleaned.

Found that the chronograph runner has some minor damage as does the hammer so they will need to be replaced at some point, and the pusher stem seems to be sticking when resetting the chronograph, the pusher stem in the final photo is a from a 321 I think which works ok, so I'll need to see whats going on there.

Anyway a bit of fun more than anything but it will be for a project Speedmaster at some point

You are far more daring than I would ever be with a watch like that. Perhaps I should start with something like this

Professor · May 30, 2020

Just hopefully accomplished a repair. My Shanhai Watch Factory piece began acting funny after I forgot to take it off when busting up a stump with a mattock.
It sudden began losing time fast and the regulator arm had no effect. I then noticed the hairspring was no longer engaged by the regulator.
I found the pin to boot fit was not good, the pin was bent and left a small gap that had allowed the hairspring to jump out.
It took some doing but I managed to turn the boot with tweezers and get the spring back into place. Hairspring doesn't look damaged. The pin somehow got straightened in the process, I have no idea how.
It will be a few days before I can adjust it again properly. It was consistently accurate to plus four seconds in 18 hours before this.

BatDad · May 30, 2020

pascs
Todays project, spare 861 😁

Im hoping to do the exact same. Parts separated by order of installation from what I can figure out from the service manual. Mainspring replaced and installed - need to oil the arbor and the new friction spring when it arrives. Slow going - but a lot of fun.

warrydog · May 31, 2020

I've tried on several occasions over the past 30 years.....I understand mechanics, but it doesn't work for me
My eyesight is not getting better and my hands are not more steady.
It never ends well

Who's started watch repair?

pascs

Archer

pascs

JwRosenthal

Professor

BatDad

warrydog

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