HATTORY-SEIKO 8N81BrandHATTORY-SEIKOCaliber8N81SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4018N81Winding stem03513889840351388.8N81TRAIN WHEEL BRIDGE01253989840125398.8N81FOURTH WHEEL AND PINION02414389840241438.8N81Hour wheel02714359840271435.8N81Setting lever03833879840383387