MIYOTA GP30 Brand MIYOTA Caliber GP30 Size 12 1/2 Function SC-D(12) BIGDATE Version Hands 0.70x1.20x0.18 Stem 065-992 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecial168042MIYOTAGP3012 1/20.70x1.20x0.18SC-D(12) BIGDATE WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem065-9929140065992