HATTORY-SEIKO 2205 Exploded diagram Brand HATTORY-SEIKO Caliber 2205 Size Function Version Hands Stem 351-221 Stem (subs.) 351-222 (lang) Stem (2 pce) Balance staff 315-220 (26723 Boley) Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part 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