HATTORY-SEIKO W671 Brand HATTORY-SEIKO Caliber W671 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno..W671CONDUCTING PLATE86510899.W671CONDUCTING PLATE86510959