HATTORY-SEIKO 7T24A Exploded diagram Brand HATTORY-SEIKO Caliber 7T24A Size Function Version Hands Stem 351-580 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO7T24A Watchparts Part NocaliberdescriptionoriginalArtno.260BMinute wheel026158098402615804017T24Winding stem0351580984035158040007T24Electronic module4000-70598404000705.7T24CENTER WHEEL AND PINION02215809840221580.7T24FOURTH WHEEL AND PINION02415839840241583.7T24CONDUCTING PLATE86510149