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Pallet fork and balance not engaging properly

m0g

By m0g
in Watch Repairs Help & Advice

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m0g Member

m0g

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Posted

Hello,

 

So I have two Seiko movements which are non runners: 66A and 66B.

My goal is to get one of them running.

 

I have cleaned everything, and I am now in the process of reassembling. The train of wheels seems fine and spins freely.

 

The pallet fork has been mounted with its corresponding bridge and moves freely.

 

Upon installing the balance, I've noticed that it isn't engaging with the pallet fork, and I don't understand why.

 

So here is my question, why isn't the pallet fork moving?

 

Thanks

IMG_20200701_175839.jpg

IMG_20200701_175857.jpg

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m0g Member

m0g

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Both movements are fairly old and in not such a great condition. I don't have the watch with me right now, but I think both impulse jewels are gone. So next time, I'll be a bit more careful with the lighter fluid.

Refitting a jewel might be too involving for a beginner like me. I will buy a NOS replacement balance.

Thanks

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