HATTORY-SEIKO 4S77 Brand HATTORY-SEIKO Caliber 4S77 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.4014S77Winding stem035413298403541324014S77Winding stem035113298403511324014S77WINDING STEM(OTHER POS.)03518909840351890.4S77MAIN PLATE(PLASTIC)01001279840100127.4S77CENTER WHEEL AND PINION02212889840221288.4S77FOURTH WHEEL AND PINION02410169840241016.4S77DRIVE WHEEL89930050