Jump to content

Seiko 7009A Problems


Recommended Posts

Hi 

I was wondering about bent pins or an out of shape HS too so bought a new balance assembly; unless the new balance is faulty.

I marked the balance wheel so that I know where the impulse jewel is when I replace it. So, I know the impulse jewel is at least in the right direction.

One thing is bothering me about the balance: It doesn't turn all that easily all the time.

BTW - I've tried lubrication of the pallet stones and the balance.

It's a mystery...

Dave

Link to comment
Share on other sites

Yes sometime a Seiko balance can really act up. I have one on the bench that stubbornly stopped running while I was trying to correct the hairspring which was overlapping. I hope to eventually find what's wrong, at this time I simply don't.

Link to comment
Share on other sites

If I lie the balance cock upside down on the bench with the cock facing west the hairspring will swing freely when it is a smidgen north of the jewel assembly hole because at this point the spring is centred on the balance wheel. The HS isn't centred when the pivot is in the hole.

It's almost as if the jewel assembly holes are off by 0.5mm.

Very strange.

Maybe I should break out the old ball peen...LOL

Dave

Link to comment
Share on other sites

15 hours ago, Folkvisor said:

If I lie the balance cock upside down on the bench with the cock facing west the hairspring will swing freely when it is a smidgen north of the jewel assembly hole because at this point the spring is centred on the balance wheel. The HS isn't centred when the pivot is in the hole.

Then the HS is distorted, even if it's a new one. Normally a so slight distortion is not enough to prevent it from oscillating, but as I said, these are really delicate and capricious things, ask me ho do I know.

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • That would be something! Which brings me back to;  
    • you think you're going to sleep tonight you're not, you're going to ponder the question of what makes you think those of the right parts?  
    • Does anyone knows what size case a need for a dial diameter 20.60mm?
    • Sounds like the story with my Rolex. Poor (expensive) job done by an official Rolex dealer with an "in-house" watchmaker, hence I learned watchrepair and did the servicing myself. Same story as I learned with the Omega 861, again poor job by an "in-house" watchmaker by an official Omega dealer. Once your watch goes through that back-door, you have no idea what is going to happening to it 🫣   Quite nice that they sent back the parts which had been replaced !
    • yes that's definitely not right at all. I have a picture one of my friends has a Omega coaxial there was having issues to lose asking me where he should send it. As that's a specialty watch I suggested the service center. When he got it back he sent me a picture so the replace the dial as you can see the hands the mainspring barrel and I think the price was really quite decent considering all the stuff they can replace. So I do know they do change the barrels but the other person I worked at the service center when I would ask questions and unfortunately I can't remember all the answers. I think a lot of the changing a parts is at the discretion of the watchmaker. Plus I don't know enough about the chronographs and whether that would be considered a vintage watch? I take some of the vintage watches may have been sent directly to Switzerland or another service center. Obviously with a watch like the one down below they probably have a infinite supply of parts is its relatively modern vintage stuff becomes more interesting even the watch companies don't have necessarily infinite supply of parts. But no matter what the watch shouldn't disintegrated six months that's definitely an issue.        
×
×
  • Create New...