HATTORY-SEIKO V257 Brand HATTORY-SEIKO Caliber V257 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.401V257Winding stem03511319840351131.V257SECOND WHEEL PINION02400099840240009