Eta 754-757

[Murks]

Thanks for all the help i have one more question I want to replace the jewels in this watch movement can I use seitz cylindrical hole jewel or does it have to be the original jewel?

[Neverenoughwatches]

23 minutes ago, Murks said:

Thanks for all the help i have one more question I want to replace the jewels in this watch movement can I use seitz cylindrical hole jewel or does it have to be the original jewel?

Why do you need to change the jewels ? I'll give you this Murks , you certainly have ambition for a beginner.

[Murks]

Thanks mate I do have ambition it means everything to me been a watch repair a practice everyday I have spend loads money on tools all my money goes on wish I had someone who word train me  that's where all my money goes regard to the jewel I have few of this movements with jewel missing can I use seitz cylindecal jewel?

On 6/18/2023 at 11:44 PM, Murks said:

 

 

Edited June 20, 2023 by Murks

[tomh207]

As always someone will likely know better than me hut anyway I’ll try. I think this is a relatively newish ETA movement so a fair chance it would use standard Seitz jewels, if not you would need to find a jewel with the correct hole size for the pivot and an od slightly larger than the jewel hole in the plate then ream the hole to take the new jewel.

 

Tom

[nickelsilver]

Which jewel? The balance jewels should be convex with olive hole, the other jewels can be flat with cylindrical hole. But you can also use convex where flat jewels go- it's actually nicer. And olive holes are always nicer (there are flat jewels with olive holes too). Seitz (Bergeon) has cut way back on the sizes they provide, and suppliers seem to be running low on old stock.

[Murks]

Hi nick the jewel is actually for the pallet hole jewel a find one on my spare parts but I'm not sure if is going to fit it feels a bit stiff when putting it in to the hole should a open the hole a little and thanks for your advice you mean I can actually use the convex that goes on balance jewel to the cylindecal that goes on the pallet jewel?