They are NOT designed to be forgiving and it is very easy to do extensive (expensive) damage. A marine chronometer is a timekeeper precise enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation. Marine chronometers have become highly collectible. It was created in the 18th century and is very precise and accurate.

There are so many people who use a chronometer.

Chronometer, a timepiece that is exceptionally accurate.

Unfortunately, these historically important, monetarily valuable instruments were never intended to be in hands unfamiliar with their operation. Related Resources. These accurate timekeeping devices were crucial for the Age of Exploration. People who work in the marine use it for celestial navigation among others.

It is an astronomical method of calculating the longitude at which a position line, drawn from a sight by sextant of any celestial body, crosses the observer's assumed latitude. Marine chronometers are very impressive timepieces that were developed for use on ships for correct navigation.

I will not be writing about what is nowadays often called a chronometer: a mechanical wrist watch made to standards that meet the requirements …

Traditionally, the term refers to the marine chronometer, a rugged mechanical instrument used at sea to keep time for navigational purposes. Marine Chronometer.

Just to be clear, this blog is mainly about the marine chronometer, sometimes called a box chronometer.

Marine chronometers are precise, specialized clocks for finding longitude at sea. A marine chronometer is a timepiece which is precise enough to be used as a portable time standard.

Origin: National Air and Space Museum, Smithsonian Institution. Some of them were made for use in the air and for use by surveyors, but usually do not differ fundamentally from the basic marine chronometer. Today a cheap quartz watch keeps accurate time, and many chronometers on ships are battery operated.

… They serve as portable time standards. to make a thread dedicated to quartz marine chronometers. Topics. On an "important" piece, this can result in a catastrophic loss in originality. Care of the Marine Chronometer.

Traditionally, the term refers to the marine chronometer, a rugged mechanical instrument used at sea to keep time for navigational purposes. When first developed in the eighteenth century it was a major technical achievement, as accurate knowledge of the time over a long sea voyage is necessary for navigation without electronic or communications aids.

Hi I believe it's about time (get that? )

Image Date: 2012. Credit: National Air and Space Museum, Smithsonian Institution. Chronometer, a timepiece that is exceptionally accurate. A marine chronometer is a timepiece that is precise and accurate enough to be used as a portable time standard; it can therefore be used to determine longitude by means of accurately measuring the time of a known fixed location, for example Greenwich Mean Time (GMT) and the time at the current location. The spring-driven marine chronometer is a precision timepiece used aboard ship to provide accurate time for celestial observations.A chronometer differs from a spring-driven watch principally in that it contains a variable lever device to maintain even pressure on the mainspring, and a special balance designed to compensate for temperature variations. Most clocks and watches tend to lose or gain time each day when compared to the atomic clock. Creator: Bruce Morser. The marine chronometer is used to tell time on a ship. Longitude by chronometer is a method, in navigation, of determining longitude using a marine chronometer, which was developed by John Harrison during the first half of the eighteenth century. Type: Illustration.

The design of the escapement (the interface between the balance and the power train) is such that doing these things will likely result in serious damage.