Speedmaster Pre-Professional Ed White 105.003

Last straight-lug Speedmaster and the model NASA tested and flight-qualified in 1965. Named after Ed White, who wore it on the first American spacewalk (Gemini 4, June 1965). Baton handsBaton handsNarrow, stick-shaped hands. Baton describes the outline rather than whether the hands contain luminous material or were fitted when a watch was first made., tritiumTritiumA radioactive luminous-paint ingredient used on many vintage watches after radium. On RAF IWC Mark 11 replacement dials, an encircled T identified the tritium specification. dial without “Professional”, larger pushers than the 105.002.