New reveals about the NASA Space program watch choice

60 years ago... NASA started to receive wrist watch chronographs to be tested...
It's January 5 , so remembering NASA astronaut JOhn Watts Young, who by serendipity played a key-role in NASA's Speedmaster history:
Selected in 1962 Astronaut Group 2, Naval aviator John Young flew onboard Gemini III, Gemini X, Apollo 10, Apollo 16, space shuttle "Columbia" STS-1 & STS-9. Totalling almost 35 days in space.
Young also holds the record of T-38 flight time: 9200 hours. Hangar 276 at Ellington field - Houston, housing NASA's fleet of T-38 jets, was renamed “John Young hangar” in October 2021.
Wrist-watch wise we notice the first Omega Speedmaster chronograph on Young's wrist at NASA during a Gemini III weight-&-balance check dated March 3, 1965. Hugely interesting as NASA had just tested chronographs for spaceflight and Gemini III astronauts Grissom & Young each wore an Accutron Astronaut GMT pilot watch and Omega Speedmaster chronograph during their March 23, 1965 spaceflight mission.
A full month before NASA received the first batch of Omega Speedmaster 105.003 (April 23, 1965) and two months before NASA officially announced the Omega Speedmaster as flight-qualified for manned spaceflight (June 1, 1965)!
(Photos: NASA)
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NASA astronaut Walter “Wally” Schirra’s 1988 book “Schirra’s Space” revealed that the 8th LeCoultre “Mercury 7″ wrist watch went to NASA STG engineer Harold I. Johnson, a member of Flight Control Branch Training Aids, who was responsible to get the wrist watches in the first place.
Although in sink with the Zulu time zone of the wordwide NASA tracking station network, the Mercury 7 astronauts only wore the LeCoultre 24 hours dial watches, nicknamed ” the Johnson watches “, during training and PR events between September 1959 and October 1963. #Moonwatchuniverse

Taking early 1960s shipping from Switzerland to the USA into consideration...
Remember in October 1964, NASA requested chronographs to be tested and these were delivered by the end of 1964... NASA still received the Speedmaster 105.003-63 version!
More info on the personal Speedmaster CK2998 chronograph of the Mercury astronauts: