There is no doubting that the FORTIS Official Cosmonauts range is legendary. Its carefully considered functionality and incomparable robustness has continued to prove itself on countless space missions over the last 20 years. Even today, its success story is continuing unburdened, seemingly into eternity – in space and on earth. With the large Super-Luminova-coated digits, hands and indices, it allows for perfect readability, even in absolute darkness. The robustness of the Official Cosmonauts housing is unmatchable and watches from this FORTIS own series (such as the FORTIS 638.10.11 Official Cosmonauts Chronograph and the FORTIS 647.27.11 Official Cosmonauts Titanium) are still part of every cosmonauts clearly defined equipment set, even today. This was proven as early as 1994 by the decision made in the hardest selection and inspection process of the Russian space programme ROSCOSMOS in Star City and still applies today. A further guarantee of the reliability and quality of the FORTIS Official Cosmonauts is the tried-and-tested Swiss automatic movement ETA 2836-2.