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Seiko Institute of Horology

The Seiko Institute of Horology (now The Seiko Museum) was opened in 1981 as part of a project to commemorate the 100th anniversary of the founding of Seiko. The museum displays research materials related to time and timepieces produced in Japan and other countries around the world. (For more information, see the February 2009 issue of the PR magazine pla-topia.) http://museum.seiko.co.jp/

Sundial?4,000-8,000 BC
Sundial
Clocks originated from Egypt between 6,000 and perhaps as long asd 10,000 years ago.
The first clock was the sundial, in which a rod was stood on the ground, and the time could thereby be roughly viewed according to the length and angle of the shadow cast by the sun.
Social conditions
The isochronism of a pendulumWhat is the temporal time method?What is quartz?Plastic and desk clocks
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