HATTORY-SEIKO 8A23BrandHATTORY-SEIKOCaliber8A23SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno..8A23TRAIN WHEEL BRIDGE01250299840125029.8A23TRAIN WHEEL BRIDGE01250309840125030.8A23TRAIN WHEEL BRIDGE01250319840125031.8A23FOURTH WHEEL AND PINION02410879840241087.8A23FOURTH WHEEL AND PINION02410889840241088