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DJW Super WRT Addict

DJW

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I had a similar issue with a watch. The second hand on your watch is not connected directly to any of the gear train, meaning it rotates around the dial by having other gears mesh with it chasing it to turn. There is a spring that keeps tension on the second hand pinion that is supposed to apply a little drag on it, thus eliminating slop in the lash, or mesh. If the tension spring is weak or out of adjustment, there will be erratic ticking at the point where there is the least resistance in the second hand rotation, usually at the top and bottom of the dial when holding the watch straight up and down....

Just a guess though....

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DJW Super WRT Addict

DJW

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This is a common problem with these Chinese made movements.... First thing would be to replace the spring, but you most likely wouldn't be able to find a replacement part. Or, you could possibly disassemble the movement down to the tension spring and try and bend it a tad bit to vet more friction on the second hand pinion. But, not advised if you've never done this before. Ether way, it's not a simple fix if you don't have experience working on watches.

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Mark Distinguished Member

Mark

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Not sure what movement is in yours but from Google images they look extremely Chinese to me.Very different from any Miyota I have worked on. But in any case, DJW is correct - when a second hand is slipping, there usually is a tension spring not doing it's job somewhere.

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