HATTORY-SEIKO 3F30 Brand HATTORY-SEIKO Caliber 3F30 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.4013F30Winding stem03547359840354735.3F30MAIN PLATE(PLASTIC)01008239840100823.3F30TRAIN WHEEL BRIDGE01258239840125823.3F30CENTER WHEEL AND PINION02218269840221826.3F30FOURTH WHEEL AND PINION02418269840241826.3F30Hour wheel02718239840271823.3F30Cannon pinion02828239840282823.3F30Setting lever03838239840383823.3F30BACK PLATE87020760