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Clock and Watch Escapements - information resource.

The U.S. Naval Observatory is one of the oldest scientific agencies in the country. Established in 1830 as the Depot of Charts and Instruments, its primary mission was to care for the U.S. Navy's chronometers, charts and other navigational equipment. Today, the U.S. Naval Observatory is the preeminent authority in the areas of Precise Time and Astrometry, and distributes Earth Orientation parameters and other Astronomical Data required for accurate navigation and fundamental astronomy.

The National Watch and Clock Museum displays 12,000 items; the largest collection in North America covering the entire history of timekeeping technology from early non-mechanical devices to today�s atomic and radio controlled clocks.

How Stuff Works - Inside a Wind-up Alarm Clock.

The history of timekeeping.

Step back in time with a visit to the American Clock & Watch Museum in America's great clock making town, Bristol, Conn. Discover the finest collection of American manufactured clocks and watches on public display and many foreign ones.

The Antiquarian Horological Society (AHS) is a learned society formed in 1953. It exists to promote the study of clocks and watches and the history of time measurement in all its forms.

National Association of Watch and Clock Collectors.

The NIST Time and Frequency Division is an operating unit of the Physics Laboratory of the National Institute of Standards and Technology (NIST), an agency of the U.S. Department of Commerce. We are located in Boulder, Colorado at the NIST Boulder Laboratories.

This public service is cooperatively provided by the two time agencies of United States: a Department of Commerce agency, the National Institute of Standards and Technology (NIST), and its military counterpart, the U. S. Naval Observatory (USNO).

Jens Olsen�s Astronomical Clock

Explore the changing ways in which Americans have measured, used and thought about time.

Comprehensive Index and Crosslinks to Horological Information on the WWW.

National Institute of Standards and Technology

The Evolution of Time Measurement through the Ages.

The Horological Foundation - a meeting and trading plaza for all those devoted to fine antique clocks, watches, barometers and instruments.

The Official Source of Time for the Department of Defense (DoD) and the Global Positioning System (GPS), and a Standard of Time for the United States.

The Willard House and Clock Museum in North Grafton, Mass., circa 1718, is a festive place with historic roots.

Find Watch Information

NAWCC School of Horology offers a Clock Repair Program and a Watch Repair Program.

Ethernet clock provides an accurate time display synchronised to a traceable time
source using NTP or SNTP over ethernet.

Is my watch a Conversion or Real Spaceview?

A guide to buying fine Timepieces

Watches Channel Timely Remarks on Watches
Watches Channel will drift you towards daring innovations, century-old traditions, bold designs, and exclusive partnerships in the World of Watchmaking.