A Heuer three-register Chronograph equipped with the famous Valjoux 71, a wonderful watch piece made in the 1940s.? This model is equipped with a Valjoux Cal.71, which is rare for Heuer watches where Valjoux Cal.23 and Cal.22 and Landeron movement were often seen.?A rare 38mm sized, waterproof three-register Chronograph. Also with an original black gilt dial with a mechanical expression unique to a three-register chronograph. The whole dial has a beautiful luster combined with the massive-looking 38mm, gives this watch an impressive appearance. Heuer has produced many chronographs in the past, but this is one of the rarest kind because of all these features.