HATTORY-SEIKO 7771 Brand HATTORY-SEIKO Caliber 7771 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.4017771Winding stem035437198403543714017771Winding stem03543739840354373.7771TRAIN WHEEL BRIDGE01253749840125374.7771FOURTH WHEEL AND PINION02413739840241373.7771CENTER MINUTE WHEEL02703739840270373.7771Hour wheel02713739840271373.7771Setting lever03833719840383371