HATTORY-SEIKO 21401BrandHATTORY-SEIKOCaliber21401SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryMovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO21401