HATTORY-SEIKO 8122A Exploded diagram Brand HATTORY-SEIKO Caliber 8122A Size Function Version Hands Stem 354-765 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO8122A WatchpartsPart NocaliberdescriptionoriginalArtno.2556Datumstern- / Datumanzeiger- Mitnehmerrad802-75698408027564000Electronic module4001 756984040017564060Coil -red4002 75598404002755