HATTORY-SEIKO 2B31 Exploded diagram Brand HATTORY-SEIKO Caliber 2B31 Size Function Version Hands Stem 351-134 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecial161660HATTORY-PULSARV233 A5 1/20.65x1.10SC WatchpartsPart NocaliberdescriptionoriginalArtno.4000Electronic module4000-49998404000499
