TISSOT 2120BrandTISSOTCaliber2120SizeFunctionVersionHands0,90x1,30Stem7238Stem (subs.)7810Stem (2 pce)Balance staff31007Balance staff (subs.)31603Mainspring (subs.)1,80x8,00x0,08Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027238401Aufzugwelle Ersatz8027810723Balance staff, pivoted80231603723Balance staff ST -shock-absorber80231007