Help identify the caliber, please

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Hi All,

I need you help in identifying the caliber please… I have one vintage Longines from 1920s which has a broken balance staff. I’m trying to identify the caliber to order a replacement staff, but it seems like the number of the caliber it is not engraved on mainplate or anywhere else.
I disassembled whole movement but cannot find any indication of the caliber number. Or maybe it was on the edge that is rusted and hence lost.

I would appreciate your feedback if you could recognize the movement and give me a hint 😀

Cheers

 
Posts
17
Likes
2
Hi All,

I need you help in identifying the caliber please… I have one vintage Longines from 1920s which has a broken balance staff. I’m trying to identify the caliber to order a replacement staff, but it seems like the number of the caliber it is not engraved on mainplate or anywhere else.
I disassembled whole movement but cannot find any indication of the caliber number. Or maybe it was on the edge that is rusted and hence lost.

I would appreciate your feedback if you could recognize the movement and give me a hint 😀

Cheers

On the dial side there is Longines Wittnauer engraved