The International Durowe 7422 is a manual wind mechanical watch movement that was in production around 1945. It features a unique Incastar regulator that includes a free oscillating hairspring. The end of the spring is positioned between two rollers, enabling the adjustment of its length and eliminating isochronism error caused by the gap between the regulator pins. This movement shares similarities with the 1090, 1190, and 1191 models, with specific differences unknown. Additionally, the International Durowe 7422 incorporates a sweep second function.