Any precise timekeeper, keeping accurate time in all weather and used in navigation. An accurate boxed ship's clock, usually in two or eight day versions.
a time-measuring instrument, especially one that is used in navigation for keeping accurate time at all temperatures.
A very accurate clock for measuring time. Used at sea to determine longitude.
an accurate clock (especially used in navigation)
a (A timepiece that shows the time of day) clock designed to have sufficient long-term accuracy that it can be used as a
a coveted certification given only to mechanical and not quartz movements
a device for accurately determining the passage of time
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a general term for an accurate portable timepiece
a highly accurate kind of clock or watch or an instrument like a watch which measures time very exactly by periods or divisions
a high-precision timepiece jewelry which movement, after rigorous testing
a high-precision timepiece which movement, after rigorous testing, has received an official timing certificate from and official timing bureau
a high-precision watch capable of displaying the seconds and housing a movement that has been tested over several days, in different positions and at different temperatures, by an official neutral body (COSC)
a high precision watch that has sucessfully undergone the entire battery of COSC tests
a luxury watch or clock whose movement has been tested and certified to operate within a certain standard of accuracy
a precision instrument and is accompanied by a certificate
a precision watch, which is regulated in various positions and at different temperatures and has received a certificate to that effect
a Replica Watches portable clock Replica Watches displays the current time and Replica Watches the current time and sometimes the current day, date, month and year
a small portable clock that displays the current time and sometimes the current time and sometimes Watch Replicas current day, date, month and year
a timepiece that has superior time keeping qualities at the time it is made
a timepiece which has been measured for accuracy and tested for precision by an official testing organization
a type of clock that allowed sailors to tell precise time
a type of complication, as explained under the heading "Complicated Watch
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a watch of extremely high precision that has received an official
a watch of extremely high precision that has received invicta lady
a watch on their wrist was far more convenient than fumbling in their jacket pockets for an old-fashioned pocket watch
a watch that keeps the correct time with extraordinary precision
a watch which can be a chronograph or just a normal watch that passed a series of stringent tests
a watch which has received a certificate from an astronomical observatory"
Literally, "measure of time". As used today, chronometer denotes an especially accurate watch (one with a deviation of no more than 6 seconds per day for a mechanical watch). Chronometers are usually supplied with an official certificate from an independent office such as the C.O.S.C. Click here to see the C.O.S.C. Chronometre Certificate.
A very precise watch that is tested for 15 days and nights at five different positions and temperature ranges.
Swiss term for a superior mechanical movement.
A mechanical watch which has passed rigorous testing for time keeping in different positions and temperatures in a Swiss laboratory. Individually numbered and accompanied by a certificate. However, because of the split-second accuracy of fine quartz watches (much more accurate than mechanical chronometer rated watches) the chronometer rating is no longer a major factor.
A clock designed to keep accurate time.
refers to Swiss watches that meet standards set by the Swiss Official Chronometer Control. Due to these standards, chronometers are very high grade watches.
Not to be confused with the term "chronograph", this term refers to a watch that has undergone a series of precision tests by measuring the watch's timekeeping abilities in various horizontal and vertical positions. These tests are performed by the C.O.S.C., a Swiss testing agency, which issues a certificate upon successful completion. The C.O.S.C. certificate will accompany the watch in its packaging.
A Standard set by the Official Watch Institute of Switzerland (COSC). The watch would have been rigorously tested for its accuracy, and is supplied with a certificate
Extremely accurate timepiece, originally designed for use at sea to assist in determining longitude. More information: longitude
A precision watch that is set in various temperatures and positions, thus meeting the accuracy standards set by an official watch institute in Switzerland. Most watch companies either provide this certificate with a purchase or it can be mailed to you.
This term refers to a precision watch that is tested in various temperatures and positions, thus meeting the accuracy standards set by an official institute in Switzerland. Most watch companies provide a certificate with your chronometer purchase.
An accurate clock used to derive the local longitude from the position of the Sun in the sky.
A chronometer is a very accurate time-keeping device that is used for determining one's longitude at sea.
Ordinary watch which has passed extremely severe precision and reliability tests in an official observatory.
Technically speaking, all watches are chronometers. But for a Swiss made watch to be called a chronometer, it must meet certain very high standards set by the Swiss Official Chronometer Control (C.O.S.C.). If you have a Swiss watch labeled as a chronometer, you can be certain that it has a mechanical movement of the very highest quality.
a highly accurate timepiece, set to Greenwich Mean Time and used for celestial navigation.
Watch which has undergone a series of precision tests in an official institute. The requirements are very severe: a few seconds per day in the most unfavourable temperature conditions (for mechanical watches) and positions that are ordinarily encountered.
Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).
a watch or clock movement certified accurate by the Contrôle Officiel Suisse des Chronomètres (Swiss Chronometer Control Board). Also see COSC and the article on Accuracy.
A watch which has passed stringent tests at an official watch testing centre and carries a certificate.
Created by John Harrison, the father of modern navigation. The chronometer is a clock that is accurate enough to calculate the longitude of a ship's position. In 1763 he built such a clock and was later awarded a £20,000 prize for his invention. Link.
Movements which meet specific timekeeping criteria laid down by the Swiss Official Chronometer Control are awarded a Chronometer Certificate. Movements are usually tested out of the case for 15 days and nights in various positions and at various temperatures.
A timepiece that has met very high standards of accuracy, tested and certified by an official watch institute in Switzerland. Comes with an individual certificate of precision.
A movement certified by maintaining precise time under rigorous testing.
A timepiece that has met certain high standards of accuracy set by the Controle Officiel Suisse des Chronometeres in Switzerland.
A clock which has passed strict timing tests, very accurate time keepers. This term is also used for watches.
Technically speaking, all watches are chronometers. Today, watches must qualify as chronometers, and most all chronometers today meet the ISO 3159 standard set by the Swiss Official Chronometer Control (C.O.S.C.).
A high-precision watch. According to the Swiss law, a manufacture may put the word "chronometer" on a model only after each individual piece has passed a series of tests and obtained a running bulletin and a chronometer certificate by an acknowledged Swiss control authority, such as the COSC (s.).
A watch that is a certified "Chronometer" has passed vigorous tests that demand the watch stands up to the high standard of precision the COSC demands(Swiss Offical Chronometer Control). The mechanical movement must be close to perfection. If punctuality is your motto, consider a certified "Chronometer".
the kind of mechanical movement that has been carefully tested under various temperatures, varied horizontal or vertical positions, etc., and upon successful completion of those tests being presented with the certificate of official chronometer. One of the most prominent certifications is Swiss C.O.S.C. (Controle Officiel Suisse des Chronometres).
A chronometer is a watch that has undergone a series of precision tests in an official institute.
Chronometer refers to watch movements that have been certified. These certified moments are passed through rigorous tests for accuracy. The coveted tests are performed by the C.O.S.C. in Switzerland. Such watches contain a certificate attesting to this from the institute.
A very precise mechanical timepiece that has been issued with a rating certificate by an observatory.
This term refers to a stopwatch with precision rigorously tested by the C.O.S.C. in Switzerland.
Clock or watch often used on board ship that gives excellent timekeeping.
This term refers to a precision watch that is tested in various temperatures and positions, thus meeting the accuracy standards set by C.O.S.C. in Switzerland. These watches are provided with a chronometer certifcate detailing specific test results by the C.O.S.C.
The chronometer indicates that the watch is in perfect running condition with high degree of precision according to the Official Swiss Chronometer Testing Institute standards.
a special clock constructed to give very accurate time; used in navigation
Watch which has undergone a series of precision tests by an official institute in very unfavourable conditions.
A chronometer is a timekeeper precise enough to be used as a portable time standard, usually in order to determine longitude by means of celestial navigation. In the world of watches, the term is also often attached to those tested and certified to meet certain precision standards. In Switzerland, only timepieces certified by the COSC may use the word 'Chronometer' on them.