Bizarre state of the balance! Miyota 8200

[SamLiddle]

Hello all,

I've just opened up a Citizen non-runner I picked up on eBay. Miyota 8200A movement. Seller reported snapped stem only. However I noticed the hairspring was way out of alignment, so took a closer look. Behold:

 

This is totally wrong, no? It seems to double back on itself, as if someone has tried to install in upside down and just bent it back through the regulator? I'm a novice and would appreciate any insights into this. How could it have happened?

 

 

Thanks in advance,

 

Sam

[rjenkinsgb]

Wow, that's a new one!

I wonder if someone took the hairspring off the balance, then put the balance back from the wrong side??

 

(Or one of the scam youtube videos, such as how to make a watch run backwards or similar 

[SamLiddle]

On second thought, it looks as though the regulator is on the wrong side of the stud... but how is that even possible?

[Nucejoe]

17 minutes ago, SamLiddle said:

 it looks as though the regulator is on the wrong side of the stud... but how is that even possible?

Yes and thats the issue with your watch. 

Detach balance complete and cock.

Remove stud carrier and regulator arm off balance cock and replace properly. 

Next hairspring needs sorting out before instalation

I am not sure if this is the right balance complete, you will find out though.

[SamLiddle]

The plot thickens...

Good news is that power does move down the train freely, and the other wheels and pivots all look good.

 

 

Again, not sure how this is likely to have happened, theories welcomed!

29 minutes ago, Nucejoe said:

Yes and thats the issue with your watch. 

Detach balance complete and cock.

Remove stud carrier and regulator arm off balance cock and replace properly. 

Next hairspring needs sorting out before instalation

I am not sure if this is the right balance complete, you will find out though.

Do you think the hairspring is salvageable? I was assuming I'd need to replace.

Well here it is... this is toast right? I feel sure I don't have the skill to straighten this out.

[nevenbekriev]

The hairspring is still salvageable. It looks like the bent place is only on the outer coil. But You will need to remove the balance from the cock in order to evaluate the spring condition. The hairspring itself is not replaceable, it is replaced together with the balance wheel as assembly.

[SamLiddle]

And then the problem of the stud holder and regulator which are on the wrong sides of each other:

 

I am baffled as to how this will have happened? 

They can't re rotated into place, the regulator pins stop the spring stud from moving past. I don't think I can remove the regulator and/or spring stud without a staking set?