Ballance staff / roller jewel

[1680]

Hello,

 

this Saturday my Datejust unfortunately stopped. I checked the movement and found out that the jewel next to the ballance staff is lost...

 

It is a ETA2836, in my ETA documents I didn't find a seperate ballance staff just the complete ballance, however on cousinsuk site I find a piece named ballance roller. Is that the spare part I need? Or what would be the easiest fix?

 

 

 

Thanks!

[FxrAndy]

Just to be sure can you show a picture of the jewel you mean i may have a spare

[1680]

Hi,

 

not my ballance, but exactly this jewel is missing:

 

 

[FxrAndy]

As far as I know you can't just buy that jewel but I may have a spare balance

[krpster]

For the work involved in replacing just the jewel it is probably more cost effective to just replace the balance assembly. But I suppose if you have the time on your hands and the skill to do it might be fun to give it a go.

[1680]

The spare part #730 is about £5, the complete balance is £40. So I think replacing just the single part is well worth it, I'd better invest the £35 left in a nice dinner...