ISA 8161.209 Exploded diagram Brand ISA Caliber 8161.209 Size 11 1/2 Function SC-CLD-CHR-MD Version Hands Stem = 815 eigen Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 395 MovementsArtno.brandcaliberSizehandsfunctionspecial167987ISA8161.20911 1/2SC-CLD-CHR-MD Watchparts Part NocaliberdescriptionoriginalArtno.401= 815Winding stem943004018154000= 8151Electronic module9430400081514401= 815.20Bridle (+)815.20761.0194304401815