Felca (?) movement id help

[bsoderling]

Need a new main spring for this Felca (?) movement.

 

It has somewhat for me uncommon HS jewel arrangements but this time I’m lucky and all balance parts appear ok.

 

But the MS is done and needs a replacement.

 

If anyone can id the movement, I would be grateful.

 

I have attached photos. The ” F ” on the dial side is what led me to think ”Felca”

 

 

 

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[Marc]

Looks like a Felsa 100 series movement.

[bsoderling]

I think you nailed it!

And it’s Felsa with an s not c, as I wrote.

Thanks a lot!




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