ROLEX 620BrandROLEXCaliber620SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffeigenBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.443Setting lever98100443645723= 600Balance staff ST -shock-absorber981007236001414Lower Ratchet Wheel981014146201427Impulse click AUT981014277201481Reduction wheel AUT981014816201482Ratchet wheel driving wheel981014826201496BOscillating weight axle ( Generic )98101496620