HATTORY-SEIKO B337A Exploded diagram BrandHATTORY-SEIKOCaliberB337ASizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401B337Winding stem03548509840354850.B337LIQUID CRYSTAL PANEL451069098404510690.B337LIQUID CRYSTAL PANEL451069198404510691.B337LIQUID CRYSTAL PANEL451069298404510692.B337SPACER89900580.B337SPACER89900581