HATTORY-SEIKO 8J55BrandHATTORY-SEIKOCaliber8J55SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4018J55Winding stem03514069840351406.8J55TRAIN WHEEL BRIDGE01253879840125387.8J55CENTER WHEEL AND PINION02214199840221419.8J55FOURTH WHEEL AND PINION02414199840241419.8J55Hour wheel02714849840271484.8J55Setting lever03833899840383389.8J55BACK PLATE89920195