HATTORY-SEIKO 5L15 Brand HATTORY-SEIKO Caliber 5L15 Size Function Version Hands Stem 351-670 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno..5L15CENTER WHEEL AND PINION02216779840221677.5L15FOURTH WHEEL AND PINION02416769840241676