HATTORY-SEIKO 8123A Exploded diagram BrandHATTORY-SEIKOCaliber8123ASizeFunctionVersionHandsStem354-765Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryMovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO8123A WatchpartsPart NocaliberdescriptionoriginalArtno.2108123Third wheel231-75598402317552508123Hour wheel027176598402717654018123Winding stem035476598403547652556BDatumstern- / Datumanzeiger- Mitnehmerrad080275598408027554000Electronic module4001-7569840400175640606530Coil -red4002-7559840400275582407813Day indicator spring-clip09637819840963781.8123MAIN PLATE(PLASTIC)01017759840101775.8123TRAIN WHEEL BRIDGE01257759840125775.8123CENTER WHEEL AND PINION02217559840221755.8123FOURTH WHEEL AND PINION02417659840241765.8123Setting lever03837559840383755.8123DATE DIAL08015389840801538.8123DATE DIAL08015999840801599.8123DATE DIAL08016229840801622.8123BACK PLATE87020143.8123SPACER89903680