TISSOT 28.5R-21BrandTISSOTCaliber28.5R-21Size12 1/2FunctionSC-AUTVersionHands1,00x1,70Stem6606Stem (subs.)Stem (2 pce)Balance staff32213 INCABalance staff (subs.)Mainspring (subs.)1,3x9,5x0,10Sp.Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.227Sweep second pinion025998425BClick98800425285R430BClick spring98800430285R705BEscape wheel -pinion straigt piv.98800705285R723Balance staff ST -shock-absorber802322131496Oscillating weight axle1496Oscillating weight axle98801496285R