OTERO 30BrandOTEROCaliber30Size12FunctionVersionHands0,80x1,40Stem7508Stem (subs.)Stem (2 pce)Balance staff36002Balance staff (subs.)Mainspring (subs.)1,5x10,5x0,13Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027508723Balance staff ST -shock-absorber80236002