Highly accurate mechanical or electronic timekeeper enclosed in a box (hence the term box chronometer), used for determining the longitude on board ship.Marine chronometers with mechanical movements are mounted on gimbals so that they remain in the horizontal position is necessary for their precision.
Highly accurate mechanical or electronic timekeeper enclosed in a box (hence the term "box chronometer"), used for determining the longitude on board a ship. It is necessary for marine chronometers with mechanical movements to be mounted on gimbals so that they remain in a horizontal position.
Highly accurate timepiece designed for use at sea. More information: Chronometers