This is a fantastic oversized Longines chronograph with the famous 13ZN manual wind movement, circa 1945. The stepped stainless steel case and lugs are in excellent condition. All the edges are still present and sharp. The dial is spectacular! It has a golden tone with black arabic numbers and pulsations around the outer rim of the dial. The blue steel hands stand out against tone of the dial. The large chronograph registers count seconds and chronograph minutes. This oversized chronograph measuring 37mm is powered by the famous 13ZN manual wind movement.