ALPINA 847BrandALPINACaliber847Size8 3/4 x 12FunctionVersionHandsStemDCN1550Stem (subs.)Stem (2 pce)Balance staffDCN 2603Balance staff (subs.)318-158-81-50-37Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.723Balance staff, pivoted802318-1