TISSOT 2031BrandTISSOTCaliber2031Size13FunctionVersionHands0,90x1,50Stem5444Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.136Stem cock988001362031227BSweep second pinion0227-2031988002272031262 /1BMinute wheel988002622031401Winding stem8025444435BYoke spring988004352031443BSetting lever9880044320314000Electronic module025998