REGO 1320 Brand REGO Caliber 1320 Size Function Version Hands Stem 12601 Stem (subs.) Stem (2 pce) Balance staff 48602 Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem80212601723Balance staff ST -shock-absorber80248602