MIDO 917 Brand MIDO Caliber 917 Size 8 3/4x12 Function SC-AUT Version Hands 0,85x1,30 Stem 7242 Stem (subs.) Stem (2 pce) Balance staff 27804 INCA Balance staff (subs.) Mainspring (subs.) 1,35x8,5x0,09Sp. Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027242404Aufzugwelle -negativ (Werkteil)8037242415Ratchet wheel445Setting lever spring959004450917723Balance staff ST -shock-absorber80227804