HATTORY-PULSAR Y590A Exploded diagram BrandHATTORY-PULSARCaliberY590ASize5 1/2Functiono. SCVersionHands0.45x0.90Stem354-705Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)Battery364MovementsArtno.brandcaliberSizehandsfunctionspecial161620HATTORY-PULSARY590A5 1/20.45x0.90o. SC WatchpartsPart NocaliberdescriptionoriginalArtno.401Y590Winding stem03547019840354701401Y590Winding stem035470598403547054000Y590Electronic module =Seiko 54204001-378984040013784060Y590Coil -red4002-70598404002705