An 18th century precision pendulum clock, which played a valuable role in helping to solve one of the greatest scientific challenges of the age, is on permanent display at Leeds City Museum.
Built by famous clockmaker John Harrison, who was born in Wakefield, and his brother in 1727, the timepiece helped to accurately determining longitude at sea.
The clock is a fundamental part of Harrison’s long research, which led to his solution of a large, extremely accurate watch completed in 1759.
Visitors to the exhibition can learn more about Harrison’s quest for longitude.
Councillor Lucinda Yeadon, executive member for leisure and skills, said: “Accurately determining longitude at sea was a question that baffled scientists and experts for many centuries.
“This new exhibition at Leeds City Museum will enable visitors to see one of John Harrison’s precision pendulum clocks, that played a valuable role in helping to solve the problem.”