LANCO 510 Brand LANCO Caliber 510 Size 5 1/4 Function Version Hands 0,55x1,10 Stem 5425 Stem (subs.) Stem (2 pce) Balance staff 25507 INCA Balance staff (subs.) Mainspring (subs.) 1,5x7,5x0,075 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025425723Balance staff ST -shock-absorber80225507