RONDA 502 Exploded diagram Brand RONDA Caliber 502 Size 10 1/2 Function o. SC Version Hands 0.70x1.20 Stem =515 (eigen) Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 371 MovementsArtno.brandcaliberSizehandsfunctionspecial166859RONDA50210 1/20.70x1.20o. SC Watchparts Part NocaliberdescriptionoriginalArtno.401= 515Winding stem3000.16498200401515401BWinding stem - long thread pocket w.98200401516450BSetting wheel982004505024060BCoil3621.033982040605054400 / 4402= 505 + 773Battery connection (-)3601.078982044005054401Bridle (+)98204401502