The Fortis Official Cosmonauts Chronograph, launched in 1994, is a steel automatic chronograph built around the Valjoux 7750 movement. It has a black dial with a date and the standard three subdials, a rotating bezel and an engraved case back with a Russian space programme link. I could not find a reliable official source for the original case size, so it is not stated here.

Fortis became the official supplier of the Russian space programme in 1994, and its watches were worn by cosmonauts at Star City and on the Mir station. The brand then named the line after this link, and it has kept the Cosmonauts name since.

Collectors value the first Official Cosmonauts Chronograph as a rarer alternative to other space-flown chronographs, and the Fortis name is less crowded than the Omega Speedmaster’s. The original is long out of production, but Fortis still makes Official Cosmonauts watches, including the B-42 range.