HATTORY-SEIKO 4006 Exploded diagram BrandHATTORY-SEIKOCaliber4006SizeFunctionVersionHandsStem354-805 (GW)Stem (subs.)8999-984 (WW)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)0.95x10.5x0.125 AUTMainspring (subs.)401-805BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem354-8059840354805443Setting lever assembled383-8059840383805445Setting lever spring388-8059840388805705Escape wheel -pinion straigt piv.251-8059840251805721Balance cplt. -regulated310-47098403104707714006Mainspring AUT sliding attachemnet401-805 =2378X98404018051482Ratchet wheel driving wheel505-6909840505690