HEUER 1666BrandHEUERCaliber1666SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.8219= 736Hammer, mounted, 2 functions94008219736