The technological breakthrough of a clock which could keep accurate time to within one second every month was an unheard-of feat in 1727.
But along came the Harrison Precision
Pendulum Clock Number Two (pictured here), the foundation for John
Harrison's later timepieces that ultimately led him to solve the
problem of calculating longitude. The key was the invention of the
marine chronometer, a portable clock able to keep accurate time at
The original Number Two, from Leeds
Museum & Galleries, is to go on show with a perfect replica of
Precision Clock Number One in a new exhibition at Fairfax House in
York - the first time the longcase clocks have been on public
Keeping Time, from October
5-December 31, looks at the dramatic development of timekeeping in
the late 17th and 18th centuries, when precision timekeeping became
increasingly important, with a particular focus on clockmakers of
York and Yorkshire.
Works are also on loan from the
British Museum, York Museums Trust and a number of private
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