A marine chronometer built by English clockmaker Charles Frodsham in the mid 19th century is to auction later in the month.
The timepiece will appear at Duke's in Dorchester, UK with a £3,000-5,000 ($4,882-8,137) estimate on February 14.
Frodsham was one of the most significant makers of the era, known for his exceptional timepieces. His chronometers were specifically designed for navigating the ocean.
Amy Brenan, a spokesperson for the auction house, explained to Blackmore Vale Magazine: "A normal clock with a pendulum would not keep accurate time due to the motion of the ship.
"The mechanics of a chronometer are suspended in a case so the rhythm of the instrument is not affected by the incline of the ship and the humidity and temperature cannot affect the stability metals."
In 2010, a Frodsham pocket chronometer with an 18k gold half hunter case sold for $40,000 at Christie's New York.
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