HATTORY-PULSAR Y580A Exploded diagram Brand HATTORY-PULSAR Caliber Y580A Size 5 1/2 Function o. SC Version Hands 0.45x0.90 Stem 354-902 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 321 MovementsArtno.brandcaliberSizehandsfunctionspecial161618HATTORY-PULSARY580 A5 1/20.45x0.90o. SC161670SHIOJIRIVX10 A5 1/20.45x0.90o. SC Watchparts Part NocaliberdescriptionoriginalArtno.401BWinding stem354-90298403549024000BElectronic module4001-832984040018324060BCoil -red4002-83298404002832.Y580SAFETY CHAIN655BC-SCS.Y580SAFETY CHAIN656BC-SCG