Buren transplant

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I would like to replace a wrongly installed Buren cal 11 for the correct cal12 and wondered if these are easily transferable?
I’m hoping this is the case as I know some Carreras were produced using either
Any help appreciated
 
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Hi Roger, yes there should be no issues switching them over as they are fundamentally the same movement. Cal.12s tend to be quite expensive these days if you can even find a loose one, unless you use a donor but that's more money still!