HATTORY-SEIKO V612 Brand HATTORY-SEIKO Caliber V612 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.401V612Winding stem03513159840351315