MIYOTA GM15 Brand MIYOTA Caliber GM15 Size 10 1/2 Function o. SC-D(3) Version Hands 0.70x1.20 Stem 065-543 Stem (subs.) 065-545 (Lang) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 364 MovementsArtno.brandcaliberSizehandsfunctionspecial166507MIYOTAGM1510 1/20.70x1.20o. SC-D(3)166509MIYOTAGM1510 1/20.70x1.20o. SC-D(6) Watchparts Part NocaliberdescriptionoriginalArtno.401GM00Winding stem065-5439140065543410Winding pinion with square hole9810041020304000Electronic module279-E569149279E56.SETTING STEM lang065-54509140065545