Patek Philippe, a gentleman's 18ct. gold wristwatch, Ref:3426, circa 1964, matt silvered dial with raised gilt baton markers, 18-jewel damascened movement adjusted to heat, cold, isochronism and five positions, numbered 797356, circular case with snap on back numbered 2638377/3426, dial, movement and case signed, London import marks for 1964, diameter 32mm, with Patek Philippe box.