JUNGHANS 642.31 Exploded diagram Brand JUNGHANS Caliber 642.31 Size 10 1/2 Function SC-CLD Version Hands 0.65x1.10 Stem 354-866 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 395 MovementsArtno.brandcaliberSizehandsfunctionspecial166620HATTORY-PULSARY142 A10 1/20.65x1.10x0.18SC-D(3)