LONGINES 652 Exploded diagram BrandLONGINESCaliber652Size10 1/2FunctionCHR-CLD-AUTVersionHandsStem= ETA2004-1Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)1.05x7.0x0.08 AUTMainspring (subs.)Battery