TISSOT 17.5BrandTISSOTCaliber17.5SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)1,40x7,0x0,09x240Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.770Mainspring98800770175