HATTORY-SEIKO 7001A Brand HATTORY-SEIKO Caliber 7001A Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.7217009Balance cplt. -regulated310-0209840310020