Tissot Seastar balance spring

[Tricati15]

Hello everyone. I confess to having come to the end of my capabilities!  The watch in question is a Tissot Seastar with  an 781-1 movement and  the part that's got me beat is fitting the 'pin' ( I can barely see it let alone fit it) to the stud that secures the end of the balance spring.  It's the third replacement balance wheel and spring I've  tried  fitting. In the  first attempt, I ended up accidentally kinking the spring. The second one I managed to find on the internet had the incorrect end to the spring and the third replacement came without the 'stud' unfortunately (I hope I'm using the correct terminology here) I was hoping for.  I've taken the assembly to a number of outlets here in Edinburgh in the hope of finding someone willing to fit the stud with the pin, without success. Is there anyone out there who could fit that part to the end of the spring for me?  I'd pay for the help of course.

 

 

 

 

[matabog]

I would take off the HS from the balance. It would be much easier to manipulate the HS this way. Just make a note of the collet orientation on the balance wheel

[rodabod]

This is a very advanced task which you are attempting. 

It may be easier to obtain another balance complete. I will have a look.

By the way, I think Edinburgh has basically no watchmakers anymore since Tomian closed down recently. 

Edited December 14, 2017 by rodabod

[rodabod]

Do the ones in this listing have the correct stud shape?

https://www.ebay.co.uk/itm/301439414127 

I see that “RB” means “without stud” according to Cousins. 

[Tricati15]

Thanks everybody for your comments. Due to circumstances I was unable to respond sooner. I`ll keep an eye on ebay in the hope the correct balance wheel turns up.