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Posted

Hi, 

I have a problem I'm hoping you can help me with.

I have an EB 8400-74 movement and have managed to loose the balance jewel. It's an Novodiac shock protection but I have problem finding the correct dimensions to order.

Does anyone have any idea where to find thsi information?

 

Posted
18 hours ago, Johan said:

Hi, 

I have a problem I'm hoping you can help me with.

I have an EB 8400-74 movement and have managed to loose the balance jewel. It's an Novodiac shock protection but I have problem finding the correct dimensions to order.

Does anyone have any idea where to find thsi information?

 

Welcome Johan,

If this is the same Novodiac system as the Bettlach 8800, then I have spare balance jewel and setting. I am not sure if its the same, but cousins does note this as the same part for the 8400-74. I can't find any images for the movement, so can you post a pic?

 

J

Screen Shot 2017-02-16 at 6.57.50 AM.png

Posted

I think that the 8400 is the base calibre for the 8420 calibre. I have found some other parts but not this one. 

I think that the 8800 is larger so I'm not sure if it would fit.

I don't seem to be allowed to upload images so I uploaded them on an image site:
https://ibb.co/fMNPOv
https://ibb.co/e0RvVa

Posted

Got it Johan. I'll be home in a couple of hours and will check through my parts. I know for sure I have EB 8800, and I can send you that for you to try, but I also have some other Bettlach movements I can check. More to come.

J

Posted
22 hours ago, noirrac1j said:

Got it Johan. I'll be home in a couple of hours and will check through my parts. I know for sure I have EB 8800, and I can send you that for you to try, but I also have some other Bettlach movements I can check. More to come.

J

Awesome! But I must warn you, I live in Sweden so I don't know how much the postage will be...

I wonder if an inca-jewel might fit? 

I might have a few of those myself. I guess it won't hurt to try...

 

Posted

@Johan I found three Bettlach movements:

an 8461 complete movement and I can send you the balance jewel setting and spring or any component thereof,

DSCN5054.thumb.jpg.cd085eb4baf846517a775eeb433f55d9.jpg

 

 

an 8800 complete setting, jewel and springDSCN5055.thumb.jpg.62b09825794cd5ca27b8630d1554a7dc.jpg

 

and another type of 8800 balance setting with KIF spring but I can't find the jewel (lots of smal envelopes to look through).

DSCN5056.thumb.jpg.15120fb4540ce67aa8cd3a4e2d6f821a.jpg

Will any of these work?

 

J

 

  • Like 2
Posted
3 hours ago, Johan said:

The 8461 looks exatly like the one I had. It is most likelly the best fit. 

Ok, I'll send it out today and let you know the particulars via message.

 

J

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