HATTORY-SEIKO 7F26 Exploded diagram BrandHATTORY-SEIKOCaliber7F26Size10 1/2FunctionVersionHandsStem351-670Stem (subs.)351-105 langStem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4017F26Winding stem035157598403515754017F26Winding stem03516709840351670.7F26MAIN PLATE(PLASTIC)01005719840100571.7F26TRAIN WHEEL BRIDGE01256709840125670.7F26CENTER WHEEL AND PINION02215729840221572.7F26FOURTH WHEEL AND PINION02415759840241575.7F26Hour wheel02715739840271573.7F26Setting lever03836709840383670