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The company built the Elgin National Watch Company Observatory in 1910 to maintain scientifically precise times in their watches. The company produced many of the self-winding wristwatch movements made in the United States, beginning with the 607 and 618 calibers (which were bumper wind) and the calibers 760 and 761 (30 and 27 jewels respectively).
The next 3 decades saw the development of quartz clocks as precision time standards in laboratory settings; the bulky delicate counting electronics, built with vacuum tubes, limited their use elsewhere. In 1932 a quartz clock was able to measure tiny variations in the rotation rate of the Earth over periods as short as a few weeks. [39]
The result was a clock that was accurate to the hundredth of a second. In the factory, the sounder audibly ticked off the seconds so that workers could set the watches accurately. After the opening of the observatory, the Elgin National Watch Company adopted the slogan: "Elgin Takes The Time From The Stars And Puts It In Your Pocket".
Eardley Norton, a most highly esteemed member of the Clockmakers' Company, was working between 1762 and 1794. There are clocks by him in the Royal Collection and many museums worldwide. Norton made an astronomical clock for George III which still stands in Buckingham Palace.
The first Swiss quartz clock, which was made after World War II (left), on display at the International Museum of Horology in La Chaux-de-Fonds. During World War II, Swiss neutrality permitted the watch industry to continue making consumer time-keeping apparatus, while the major nations of the world shifted timing apparatus production to timing devices for military ordnance.
Samsung; Sandoz watches; Schwarz Etienne; Sea-Gull; Sector; Seiko; Seiko Instruments; Seikosha; Sekonda; Shinola Detroit; Sinn; SSIH (previous holding company, now ...
The following is a list of American companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. Samuel Abbott; Montpelier, Vermont (1830–1861) Ansonia Clock Company; Ansonia, Connecticut and Brooklyn, New York (1851–1929)
The Model 21 Hamilton Marine Chronometer for large vessels was built first and had a chain-drive fusee, the second hand advanced in 1 ⁄ 2-second increments over a 60-second-marked sub-dial, and was kept in a traditional gimbaled double box for the express purpose of keeping the clock in a "dial up" position to minimize ship-movement-induced ...