Jump to content

Recommended Posts

Posted

As far as I'm concerned the hairspring is the 'Achilles Heel' of the amateur watch repairer. I can manage most things with a varying degree of ability but the hairspring always seems to be a stumbling block for me anyway. I recently ruined a spring from a 2892.2 movement. Whilst removing the balance complete with bridge the spring caught on the teeth of one of the wheels. Spent hours trying to gently 'smooth' out the distortion. In the end gave up and went for a new one. One question I would like to ask is when ordering a 'Balance Complete' presumably it is the balance wheel with spring attached. On this particular movement the spring is attached to the bridge by a wedge shaped pin which appears to be glued on (see photo sorry about quality) What level  of ability is required to attach the spring to the bridge or should I go for balance spring and bridge which of course more expensive?

 

 

 

 

abcd.JPG.59c87961c5612c651c72609f4e9e92a5.JPG

Posted

There was talk on the forum of a video that illustrated removal/ replacement of the stud and regulator pin. 

I hope this helps.

Posted

I assume you mean 2892-2 movement like the one I'm just working on in the pictures. (This one was heavily oiled.)
Yes the stud is glued into place and are not one of the easiest tasks around. I belive if you orderd a balance complete you will get the balance and the spring with stud already attached.
ETA has a special tool to put the spring into place and adjust it with. But with some skills you can do it with flat tiped tweezers too.
Not the easiest task.
 

2892-2.jpg

2892-2 Spring.jpg

Posted
7 minutes ago, HSL said:

I assume you mean 2892-2 movement like the one I'm just working on in the pictures. (This one was heavily oiled.)
Yes the stud is glued into place and are not one of the easiest tasks around. I belive if you orderd a balance complete you will get the balance and the spring with stud already attached.
ETA has a special tool to put the spring into place and adjust it with. But with some skills you can do it with flat tiped tweezers too.
Not the easiest task.
 

2892-2.jpg

2892-2 Spring.jpg

I think the question is, how to remove the stud off of the stud holder and replacement.

  • Like 1
Posted

Yups the pictures just shows how it is fastened. Since the topic been handled before I didn't post more. ;) 
Here is the link to the previous post..

 

  • Like 2
Posted

Shamefully I heat the stud with soldering gun, burn the glue, the glue will not conduct heat to HS. Assembly is ,Clean reglue. 

I ought to read this again see if I can improve technique.

Thank for sharing HSL.

 

Posted

Thanks HSL

Iv'e bitten the bullet and found a dealer in the US who sells the complete setup...Teach me to be more careful when removing the balance. Yes it is the same movement in a gold cased Garrard. I think I might purchase another spring and fit it to the bridge as an excercise. So it just pushes in and twists? Some seem to be diagonal to the bridge fixing....

Posted

Yes it pushes in and pulls out, the final position the studs end up in is dependent of the watch adjustement. 
If you look in the ETA dictionary found here ( I put it in the recourses) 
https://www.eta.ch/dictionary/dictionary.html
There you can look how the ETAcron studs are working and what adjusts what..

ETAchron.jpg

Posted

Oof glucydur balance. Not as easy to find as nickel.

7 hours ago, Nucejoe said:

Shamefully I heat the stud with soldering gun, burn the glue, the glue will not conduct heat to HS. Assembly is ,Clean reglue. 

I ought to read this again see if I can improve technique.

Thank for sharing HSL.

 

Haha that's similar to what I do sometimes. Quick and easy way to make sure the spring is in most relaxed state when mounted. As well as easier and more accurate to adjust should it need any. I use glowing hot kanthal wire from my vape mod haha. 



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • So I recently picked up a slim 6105 which had a badly damaged dial (posted in another thread). I couldn't really live with that given I had another dial handy, also in not great condition but with added bonus of having a better lume job and actually being fully attached to the dial plate!  So what to do with that damaged dial - I tend to think they should be in watches. Well...  A 6105 mid case and crystal assembly punt arrived from Italy yesterday, which I've frankened back into a working piece with the dial... Damaged dial now sits behind damaged crystal in an original case, currently powered by 6106 (with a 6106 caseback on to reflect this... I've cleaned up the original crystal up to a point, but kept it fairly beaten to distract me from the dial, my markers and it's not very satisfying lume job - it's not awful but it's glossy which I don't like. Also has a 6139 bezel on it for now because that's all I could find - I couldn't live with it naked and don't mind it tbh, though will keep an eye out as ever.  So yes, here you go - another 6105 (almost!) back to life. I'll also keep my eye out for the correct movement and perhaps a better dial in time. Caseback might prove tricky/expensive. I know Frankens aren't to everyone's taste but I do enjoy getting these back into working form. Better a working/worn watch than a sat in parts draws imo. And the good news here is that, thanks to the repro service crown, this is the only one I have I could actually feel safe to swim in!     
    • I suppose the first question is have you got the correct replacement stem. If you've removed it in the setting position then you could try pressing the button while inserting the stem. Other than that it's a case of possible strip down to get to the setting lever. 
    • The stem was already broken when I got the watch, so there was a piece already left in the movement, so I don’t what the setting was at when it broke! There’s still a broken piece left in the crown which i can’t get out! I just removed the broken piece left by the detent button as normal!
    • How did you remove the stem and what was the reason for removing it.
×
×
  • Create New...