SL SL28 Brand SL Caliber SL28 Size Function Version = PC32 Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecial166590MORIOKAPC3210 1/20.70x1.20x0.18SC-D(3)166589MORIOKAPC3210 1/20.70x1.20x0.18SC-D(6)