A 18ct gold and diamond 'Ellipse' Ref 4382 wristwatch, by Patek Philippe

A 18ct gold and diamond 'Ellipse' Ref 4382 wristwatch, by Patek Philippe The oval dark blue dial with baton markers, within a single-cut diamond bezel, the 16-250 calibre nickel-finish lever movement with 18 jewels, adjusted to heat, cold and isochronism, timed five positions, the case with snap on back and concealed bar lugs and cabochon sapphire crown, <I>European Convention marks, circa 1980, case 23.0mm wide</I> Dial, case and movement signed Patek Philippe, case no. 2791649 4682, movement no. 1403136