HATTORY-SEIKO 6730A Exploded diagram BrandHATTORY-SEIKOCaliber6730ASizeFunctiono. SCVersionHands0.55x1.00Stem351-087/-089Stem (subs.)351-085/-091Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryMovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO6730A WatchpartsPart NocaliberdescriptionoriginalArtno.250hour wheel271-1829840271182260BMinute wheel261.2724016730Handsetting stem351-08998403510894016730Winding stem351-0919840351091401Winding stem351-0879840351087407Bclutch wheel282-271984002822714456730Setting lever spring038827198403882714000Electronic module4001-279984040012794060Coil -red4002-272984040022724211ROTOR4146272984041462724401Battery limiting spring (+)427127198404271271