Chronometer
date: label: date made
content: ca. 1880
name: label: maker
content: William Bond & Son
notes: label: Description
content: This 56-hour chronometer has a later pattern Earnshaw spring detent escapement, and indications for hours, minutes, seconds, and up and down. It dates from around 1880. The inscriptions read "William Bond & Son, Boston" and "Bond's Break Circuit." The movement, like that of most Bond chronometers, was probably made in England, while the Bond break circuit mechanism was made in the U.S. The Department of Physics at Columbia University donated this instrument to the Smithsonian. The winding key is marked "512" and thus from a different piece.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Boston
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Navigation
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content: Measuring & Mapping
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2001.0162.01
label: catalog number
content: 2001.0162.01
label: accession number
content: 2001.0162
objectType: label: Object Name
content: chronometer
physicalDescription: label: Measurements
content: overall: 11 5/16 in x 13 1/16 in x 11 3/16 in; 28.702 cm x 33.1978 cm x 28.448 cm
label: Measurements
content: overall in case: 11 1/4 in x 10 15/16 in x 11 in; 28.575 cm x 27.78125 cm x 27.94 cm