LOOPING 50 Brand LOOPING Caliber 50 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff 56401 Balance staff (subs.) Mainspring (subs.) 90580 = 4.70x17.0x0.20 GW Mainspring (subs.) 90581 = 4.00x12.0x0.15 WW Battery WatchpartsPart NocaliberdescriptionoriginalArtno.705BEscape wheel -pinion straigt piv.95500705507290BAlarm wheel95507290507498BAlarm hammer9550749850