username here Posted March 4, 2014 Report Posted March 4, 2014 Has anybody converted the movement for your franken from 36k bph to 28.8?
mymanmatt Posted March 6, 2014 Report Posted March 6, 2014 I don't think it's a simple conversion. The hairspring and balance are for sure made as a pair. When singer changed their movement from 36 to 28,8, they came with a complete new movement. Must be a lot of changes
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