Please help with IWC balance wheels!

Hello to everyone. Just found balance wheels into my watch parts. First one in 7.5mm diameter:
[](s571.photobucket.com/user/barsukmusic/media/CAM01949_zpslekplan0.jpg.html)
The second in 12mm diameter:
[](s571.photobucket.com/user/barsukmusic/media/CAM01951_zpsv99mcesl.jpg.html)
I think it's IWC parts, but not sure. Please help!
Thanks.

I dont think they are IWC.

1st one is too "fat", monometalic balance with blued steel not IWC style, attachment with round pin ist not IWC.

2nd: monometalic balance with flat blued steel not IWC style, attachment strange,"Screws" seems too long for IWC.

Sorry no deal.

Regards

Ralph

Thanks for reply.
Regards

There is no way I could have helped with this request. The magic of this Forum is that there is at least one other Ralph who can. Ralph Ehrismann, you are unique.

Hi vintagewatchcollector,

I'm not the expert Ralph Ehrismann is but I reached the same conclusions as him, for the same reasons.

But --what leads you to believe that these might be by IWC? I'm curious if there's any foundation here that I might be missing.

Hi, Michael.
Look... I'm a very organized person, found this wheels in IWC box...
Like I said, I'm not sure.
Regards