A 60th Anniversary tribute to one of three classic timepieces released in 1957, this Speedmaster limited to 3,557 pieces, is based on the original “Broad Arrow”, which was not only the first Speedmaster, it was also the first chronograph wristwatch in the world with its tachymeter scale on the bezel as opposed to printed on the dial. The 2017 model perfectly matches each feature of the original and stays true to the Speedmaster's iconic spirit.