TISSOT 2037 Brand TISSOT Caliber 2037 Size Function Version Hands Stem 5444 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025444435= 2031Yoke spring988004352031443= 2031Setting lever988004432031