HATTORY-SEIKO 5626A Exploded diagram Brand HATTORY-SEIKO Caliber 5626A Size Function Version Hands Stem 354-560 Stem (subs.) Stem (2 pce) Balance staff 315-560 Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.721Balnace cplt. -for shock-absorber310-5619840310561771BMainspring AUT sliding attachemnet401-5659840401565.Centre wheel -without cannon220-5609840220560