HATTORY-SEIKO 2202A Exploded diagram Brand HATTORY-SEIKO Caliber 2202A 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 WatchpartsPart NocaliberdescriptionoriginalArtno.180Barrel with drum + cover201-2219840201221721Balnace cplt. -for shock-absorber310-22098403102202576Date jumper810-2209840810220