HATTORY-SEIKO 2K01 Exploded diagram Brand HATTORY-SEIKO Caliber 2K01 Size 6 3/4x8 Function SC Version Hands Stem 351-291 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecial162926HATTORY-SEIKO2K01A6 3/4x8SC WatchpartsPart NocaliberdescriptionoriginalArtno.4000Electronic module4000-276984040002764060Coil -red4002-09198404002091