HATTORY-SEIKO 1428A Exploded diagram BrandHATTORY-SEIKOCaliber1428ASizeFunctionVersionHandsStem351-144Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryMovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO1428A WatchpartsPart NocaliberdescriptionoriginalArtno.4000Electronic module4001-249025998