HATTORY-SEIKO 2205 Exploded diagram BrandHATTORY-SEIKOCaliber2205SizeFunctionVersionHandsStem351-221Stem (subs.)351-222 (lang)Stem (2 pce)Balance staff315-220 (26723 Boley)Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.180BBarrel with drum + cover201-220025998410Winding pignon283-2219840283221705Escape wheel -pinion straigt piv.251-2209840251220721Balance cplt. -regulated310-22198403102211480Spannrad511-2200259981482BRatchet wheel driving wheel514-22098405142201483Breguet pinion AUT860-220