Baume & Mercier, a gentleman's 18 carat gold wristwatch, circa 1970, ref. 31004, no. 421750, the two piece screw down case with stepped bezel, the black dial with baton numerals and hands and date aperture, 12 jewel Swiss electronic movement, cal. BM19162 E.S.A 9162, the case 44mm including lugs, on a black strap