Vintage Helbros Watch Mechanical 1950s with second dial

I believe it is marked France on the bottom of the dial. It's very small and hard to see. There is a deep scratch or crack in the crystal at the 9 mark and a smaller one at the 6. There are lighter scratches and scuffs on other parts of the crystal. It is working order. You have to wind it. The sides of the case show corrosion. The strap appears to be leather and is good condition, with some fuzzy edges and some separation. The metal buckle has worn down to base metal. I don't know if it is the original strap but it appears old. Crystal is between 32 and 35 mm. Total length including strap and buckle is 9 1/4 inches. All accents are silver. Some look gold in the photos.