I think you could be on to something. A few weeks ago George Eyston's chronostop came up for auction in the U.K. :
'Captain George Edward Thomas Eyston MC OBE was a British racing driver in the 1920s and 1930s, and he broke the land speed record three times between 1937 and 1939. He was also an engineer and inventor.' Wikipedia
It was a nice watch and went for a decent price, I kinda wish I send a bid in.
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