MIYOTA GP10 Brand MIYOTA Caliber GP10 Size 12 Function SS-D(12) BIGDATE Version 1 EYE ( 12 ) Hands 0.70x1.20x0.18 Stem 065-992 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery SR920SW MovementsArtno.brandcaliberSizehandsfunctionspecial168045MIYOTAGP10120.70x1.20x0.18SS-D(12) BIGDATE WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem065-9929140065992