At the height of their development, these time measuring instruments were precisely designed to meet their intended purpose of use. Pilots were equipped with one of a variety of chronograph models, a large observation watch was available for navigation officers and other crew members wore smaller three-hand watches. With its typical Mühle straightforwardness, precision and reliability, the Terrasport I Chronograph adds a new chapter to the history of the pilots‘ chronographReference M1-37-74-LB has a black dial and is fitted a stainless steel bracelet