HATTORY-SEIKO 7123A Exploded diagram BrandHATTORY-SEIKOCaliber7123ASizeFunctionVersionHandsStem354-055Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryMovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO7123A WatchpartsPart NocaliberdescriptionoriginalArtno.242BCannon pinion with driver H = 274270-023025998242BCannon pinion with driver H = 294270-024025998401BHandsetting stem354-055984035405525437123Intermediate date wheel0817-01440007123Electronic module4001-1120259984060BCoil -red4002-01098404002010.7123Batterieisolierung421901298404219012.7123Day corrector719-0039840719003