Product Description
Hampden 12 Size Balance staff part 7720 22BB100 for 12 Size standard bridge model Pivot 11
Overall Height 4.68mm
Distance from Roller Seat to Pivot 2.38mm
Hairspring Collet hole 0.76mm
Balance arm hole 1.20mm
Roller hole .060mm
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Hampden 12 Size Balance staff part 7720 22BB100 for 12 Size standard bridge model Pivot 11
Overall Height 4.68mm
Distance from Roller Seat to Pivot 2.38mm
Hairspring Collet hole 0.76mm
Balance arm hole 1.20mm
Roller hole .060mm