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NH35 balance not moving

JasperM

By JasperM
in Watch Repairs Help & Advice

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JohnR725 Distinguished Member

JohnR725

Posted
Posted
7 hours ago, JasperM said:

I was able to attach a different hairspring which I was able to get semi straight. However the amplitude is just awful. Please find below pictures and two videos. Could you please advise?

A question that comes up all too often is problems related to hairsprings. Seems like a simple solution the hairspring is removable they can be swapped. But you're going to end up with timing issues each hairspring comes with its balance wheel it's why they're not sold a separate components they come together.

I'm attaching a PDF it's not for your watch I want you to go to the very last page. The very bottom of the last page look at how they hairspring looks? Compare that with your hairspring they don't quite look the same. I don't think your hair Springs been destroyed I think it can be fixed but it can't be fixed if you don't grasp what it's supposed to look like. Then even if you grasp what it's supposed to look like hairspring work requires a lot of time to learn. Like everything else in watch repair it requires a heck of a lot of practice. You really should be practicing bending hairsprings every single day preferably not in a watch something disposable. Look on eBay look for cheap movements  Something a don't care about something to practice with because without the practice trying to practice as you go on the watches are working on is not a recipe for success.

The reason for the PDF is the last page talks about the etachron system which adds complications perhaps.

So the problem is at least for me it's hard to tell where the problem is with your hairspring other than the problem is very visible.  This is because it could be a bend of the hairspring or if the etachron  stud for instance has been rotated and you're not quite the right place that is not be a problem also. Or more likely you have both problems.

Seiko 7S26C_36C.pdf

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JohnR725 Distinguished Member

JohnR725

Posted
Posted
3 hours ago, phr0stbyte said:

I am having same issue with my movement. I think it happened in shipping.

typically and watch repair I like to think of each watch being an individual watch. As yours has the identical problem of the prior watch that I guess it's okay but if it's not identical it really should be another discussion.

Then I seriously doubt that happened in shipping. They ship Seiko watches all over the planet and they survive just fine that looks like somebody was careless with something.

As it happened in shipping I would send the watch back as that looks like an interesting bend in the hairspring

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phr0stbyte Member

phr0stbyte

Posted
Posted
4 minutes ago, JohnR725 said:

typically and watch repair I like to think of each watch being an individual watch. As yours has the identical problem of the prior watch that I guess it's okay but if it's not identical it really should be another discussion.

Then I seriously doubt that happened in shipping. They ship Seiko watches all over the planet and they survive just fine that looks like somebody was careless with something.

As it happened in shipping I would send the watch back as that looks like an interesting bend in the hairspring

It was not shipped as a watch. The movement was shipped with other parts from the dealer. Not pre-owned.

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JohnR725 Distinguished Member

JohnR725

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2 hours ago, phr0stbyte said:

The movement was shipped with other parts from the dealer.

ideally movements that are not in cases should not be randomly tossed into a box with a bunch of other stuff it should have had a outer protective case. so send it back to where it came from because it obviously wasn't packaged correctly for shipment.

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