Vintage Hanhart SUPER Mechanical Stopwatch 1/5 second - FOR PARTS / REPAIR

This is a vintage estate stopwatch previously owned and used by a railroad engineer. The condition is not the best, it’s been very used, as the case shows lots of light wear. The crystal is dirty and a bit foggy/ scratched up. The watch wound and runs properly when the green button is pressed, and stops properly when the red button is pressed. But when the black “reset to zero” button is pressed it does NOT return to zero or 60 properly - but instead goes to about 55 seconds (as depicted in the main image). I don’t know about these, but apparently this watch needs professional adjustment. Sold for PARTS or REPAIR only!