Jump to content
  • 0
east3rn

Trouble with mainspring and arbor, seiko 6309

Question

Hello.

I am working on Seiko 6309 automatic movement. The movement was quite dirty ao I cleaned up every parts of the watch.

What is giving me a headache is that the mainspring and arbor do not go along well inside the barrel.

I install them in the barrel then with pin vice, I hold one end of the arbor and try to wind the mainspring. When winding the mainspring this way, it works fine without the the arbor slipping away from the mainspirng.

Then the barrel is mounted on the plate and rachet wheel is installed on the arbor with screw.

This time I try winding the mainspring by turning the rachet wheel screw with a screw driver.

Problem occurs here. As the spring is wound, unpleasant slipping sound is heard from the barrel. Then I take out the barrel and open the lid only to find that the arbor has escaped from the inner coil of the spring.

What could be done in this case??

Thank you!

I don't have any photo but I will take some shot if it is necessary

Share this post


Link to post
Share on other sites

6 answers to this question

Recommended Posts

  • 0
19 minutes ago, rogart63 said:

 Maybe the arbor is worn. Or if the spring is worn. Maybe you need to change the spring? Been there. 

Here are the photos of the mainspring and 

the hook parts of two arbors I have.

If I had no choice but to use what I have now, which arbor would work better??

20190811_001720.jpg

20190811_001554.jpg

20190811_001301.jpg

20190811_001255.jpg

Share this post


Link to post
Share on other sites
  • 0

Hi, The most inner coil of HS should wrap around the arbor snug tight. You can reshape  the spring end,  to get the wrap tight.

Arbors hook  as the name applies should hook into the mainsprings eye with no chance of escape.  

If dispite above arbor escapes, the hook is worn out.  

Post close ups if you will, helps .

Best regards

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

  • Recently Browsing

    No registered users viewing this page.

  • Topics

  • Posts

    • So I haven't been updating this much as it was taking a super long time to get parts.  I was able to order a new balance staff buuuut in the process of switching over the hairspring and little jewel thing (still learning) I damaged the hairspring quite badly.  Before attempting this operation I made sure to check that I could order a complete balance from jules borel, just in case.  So, $90 later, I had my new balance. I was actually able to clean up the modifications that a previous watch "repairer" had done.  I think they were trying to use a balance staff they had lying around to just get it running again but they really just made a mess of it.  Putting everything back to factory brought the endshake into an acceptable amount.  It's been running for a few weeks now without issue.  Super happy to finally have fixed this watch and be able to wear it!!!
    • So I just picked up this watch from Ebay, thinking it would make a great special occasion watch.  I figured I'd be able to identify the movement after disassembly but I'm afraid I'm just as lost as before.  Does anyone have any ideas on what this could be? What I know: It's an Ollendorf movement.  Ollendorf was an importer of watch movements.  They have a cool logo. The only markings are a 315 under the dial, which doesn't appear to match any movements in the Ranfft database. Any help is super appreciated!
    • Some updates, I measured the  mainspring barrel of a 6498 and it's 16mm. I also tried loading a 10mm mainspring on an undersized winder, it did not load fully. So I answered my own question hehe. thanks.
    • Thanks. A small correction to my earlier post,  it is a Poljot 2614.2H, not a Vostok. http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Poljot_2614_2H
×
×
  • Create New...