Astronaut John Glenn as he commences entry into spacecraft Friendship 7 prior to launch operations in 1961, weaing a Tag Heuer stopwatch. Photo: Nasa
Edwin "Buzz" Aldrin in the Apollo 11 Lunar Module on July 20, 1969, wearing an Omega Speedmaster. Photo: Neil Armstrong / Nasa via AP
American astronaut Jack Swigert photographed during the Apollo 13 prelaunch countdown, on April 11, 1970, wearing an Omega watch. Photo: Granger / Shutterstock
Apollo 7 astronaut Walter Schirra, wearing an Omega Speedmaster, has his spacesuit adjusted before entering the spacecraft for simulated altitude runs at the Kennedy Space Center in 1968. Photo: Space Frontiers / Getty Images
A close-up of astronaut M Scott Carpenter inside his Aurora 7 spacecraft before the launch of the Mercury-Atlas 7 (MA-7) mission in 1962, wearing a Breitling Navitimer. Photo: Nasa
Astronaut John Glenn as he commences entry into spacecraft Friendship 7 prior to launch operations in 1961, weaing a Tag Heuer stopwatch. Photo: Nasa
Edwin "Buzz" Aldrin in the Apollo 11 Lunar Module on July 20, 1969, wearing an Omega Speedmaster. Photo: Neil Armstrong / Nasa via AP
American astronaut Jack Swigert photographed during the Apollo 13 prelaunch countdown, on April 11, 1970, wearing an Omega watch. Photo: Granger / Shutterstock
Apollo 7 astronaut Walter Schirra, wearing an Omega Speedmaster, has his spacesuit adjusted before entering the spacecraft for simulated altitude runs at the Kennedy Space Center in 1968. Photo: Space Frontiers / Getty Images
A close-up of astronaut M Scott Carpenter inside his Aurora 7 spacecraft before the launch of the Mercury-Atlas 7 (MA-7) mission in 1962, wearing a Breitling Navitimer. Photo: Nasa
Astronaut John Glenn as he commences entry into spacecraft Friendship 7 prior to launch operations in 1961, weaing a Tag Heuer stopwatch. Photo: Nasa