IWC 884-2 Brand IWC Caliber 884-2 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.180Barrel with drum + cover94200180884415Ratchet wheel710BPallet fork -pinion 1 lower end-piec.94200710884771BMainspring AUT sliding attachemnet94200771884