AP 2124BrandAPCaliber2124SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)0.67x9.0x0.08 AUTMainspring (subs.)820 1989 0BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.771Mainspring AUT sliding attachemnet82019890