WATCHES ARE QUITE simple in principle. They need an oscillator, a display and a power source. Horophiles get very excited indeed about oscillators such as free-sprung balances, tuning forks and quartz

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A HUNDRED YEARS ago on 26 January 1926, in an attic room in London’s Soho (more famous for ladies of the night than technological breakthroughs), a Scottish engineer gave the first public display of p