HATTORY-SEIKO 6602B Exploded diagram BrandHATTORY-SEIKOCaliber6602BSizeFunctionVersionHandsStem351-663Stem (subs.)Stem (2 pce)Balance staff315-610 (28732 Boley)Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.410Winding pignon283-6609840283660