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Wells Cathedral clock, 1392

Time Measurement

1392

Early balance spring watch by Thomas Tompion

Time Measurement

1675-1679

Egyptian merkhet

Time Measurement

600 BCE

Table clock by Nicholas Vallin

Time Measurement

1598-1603

Sun-and-moon dial by Elias Allen

Time Measurement

1607-1653

Pendulum clock designed by Galileo in 1642 and made by his son in 1649, model.

Time Measurement

1642-1649 (original); 1883 (model)

Caesium atomic clock, 1955.

Time Measurement

1955

Chinese Incense Clock

Time Measurement
Kundo Space Timer Clock, synchronised to the 77.5 kHz time signals from the DCF 77 radio transmitter at Mainflingen, near Frankfurt, Germany, made by Kieninger und Obergfell GmbH, St Georgen/Schw, Germany, in 1988.

Kundo 'Space Timer' radio-controlled quartz desk clock, 1988.

Time Measurement

1988

Compendium by Elias Allen

Time Measurement

1630-1653

Marine chronometer by John Arnold and Son, 1787-1799

Time Measurement

1787-1799

Clock dial marked 'Potter, Railway Time', 1840-1880

Time Measurement

1840-1880

Cubical polyhedral sundial

Time Measurement

1751-1800

Pocket watch by Thomas Tompion

Time Measurement

1675-1700

Model of a Television Set Tammeter, 1955-1965

Time Measurement

1955-1965

Empire type world clock for indicating time around the globe

Time Measurement

1909

Sundial making tool

Time Measurement

1690-1710

Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", 1843-1897

Time Measurement

1843-1897

Ashadar or time stick, Northern India, 1895-1905

Time Measurement

1895-1905

Compendium by Augustine Ryther

Time Measurement

1588

Gear wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Clock weight from long-case clock by Fromanteel

Time Measurement

1660-1665

Escape wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Pair-cased pocket watch

Time Measurement

1705-1737

Harrison's eight-day wooden clock movement, 1715.

Time Measurement

1715

"Ingersoll" wrist watch

Time Measurement

1915

Gear wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Sand glass in four pillared wooden mount

Time Measurement

1750-1800

Barnard Tompion clock

Time Measurement

1708

Pulley from long-case clock by Fromanteel

Time Measurement

1660-1665

Clock

Time Measurement

Equinoctial ring sundial

Time Measurement

1719-1791

Synchronous mains electric clock of the self-start

Time Measurement

1934

Bracket timepiece in mahogany case with silvered d

Time Measurement

Cylinder watch in pinchbeck inner case, tortoisesh

Time Measurement

Two-thirds scale copy of the Hampton court astronomical clock dials, with epicyclic gearing unit, outer fixed chapter ring and rotating astronomical dial

Time Measurement

Sand-glass

Time Measurement

Magnetic sundial

Time Measurement

1751-1850
Plaster cast of early Egyptian water clock or 'clepsydra' from original dating from between 1415-1380 BCE, reign of Amenhotep III, found at Karnak Temple in 1904. Original now in Cairo Museum. It was filled with water, which leaked out slowly indicating the passage of hours. The passage of hours differed according to the month and whether day or night.

Egyptian Water Clock

Time Measurement

1415-1380 BCE; 1922

Park Green Mill Double Dialled Longcase Clock

Time Measurement

1800-1820

Sand-glass

Time Measurement

Sand-glass

Time Measurement

Lantern clock with verge escapement and rach and s

Time Measurement

Chronometer in Gold Case by Thomas Earnsham, 1795-1810

Time Measurement

1795-1810

Gold verge watch with fusee

Time Measurement

Casio gents LCD digital watch, black resin case an

Time Measurement

1999

Watch with Flamenville dead-beat escapement, signe

Time Measurement

Chronometer watch in silver case

Time Measurement

hallmarked 1788

Cylinder watch in silver pair case by Ellicott, Lo

Time Measurement

Bezel wind wrist watch, c.1880

Time Measurement

c. 1880