TISSOT 2180BrandTISSOTCaliber2180Size5 1/2FunctionVersionHandsStem5512Stem (subs.)Stem (2 pce)Balance staff27909Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.2101977Third wheel and pinion920002101977401Winding stem8025512723Balance staff ST -shock-absorber80227909