OMEGA 481 Exploded diagram Brand OMEGA Caliber 481 Size 5 1/4 Function Version Hands 0,50x0,90 Stem 5429 Stem (subs.) Stem (2 pce) Balance staff 28213 INCA Balance staff (subs.) Mainspring (subs.) 480-1208 Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.180BBarrel with drum + cover480-120096504801200401BWinding stem480-110696504801106410BWinding pinion with square hole480-110896504801108710= 480Pallet fork -pinion 1 lower end-piec.480-131696504801316721Balnace cplt. -for shock-absorber481-132796504811327723Balance staff ST -shock-absorber80228213770= 480Mainspring480-120896504801208