Horology is the science and study of timekeeping devices. Clocks and watches are examples of instruments used to measure time.

Horology has a long history and there are many museums devoted to it. An example is the Royal Greenwich Observatory, which is also the source of the Prime Meridian, longitude 0° 0' 0".

See also

• chronometer
• Aaron Lufkin Dennison
• John Harrison
• clockmaker
• watchmaker

External links

• American Watchmakers-Clockmakers Institute (http://www.awi-net.org/)
• FH Federation of the Swiss Watch Industry (http://www.fhs.ch/en/work.php/)
• NAWCC Internet Chapter 185 (http://nawcc-ihc.org/)
• NAWCC: National Association of Watch & Clocks Collectors (http://www.nawcc.org/),

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