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Date

Wells Cathedral clock, 1392

Time Measurement

1392

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

Time Measurement

1642-1649 (original); 1883 (model)

Egyptian merkhet

Time Measurement

600 BCE

Early balance spring watch by Thomas Tompion

Time Measurement

1675-1679

Sun-and-moon dial by Elias Allen

Time Measurement

1607-1653

Table clock by Nicholas Vallin

Time Measurement

1598-1603

Chinese Incense Clock

Time Measurement

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

Time Measurement

1715

Escape wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Caesium atomic clock, 1955.

Time Measurement

1955

Marine chronometer by John Arnold and Son, 1787-1799

Time Measurement

1787-1799

Ashadar or time stick, Northern India, 1895-1905

Time Measurement

1895-1905
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

Barograph clock by Alexander Cumming

Time Measurement

1766

Pocket watch by Thomas Tompion

Time Measurement

1675-1700

Barnard Tompion clock

Time Measurement

1708

Empire type world clock for indicating time around the globe

Time Measurement

1909

Byzantine portable universal altitude sundial with geared calendrical device

Time Measurement

401-600

Pair-cased pocket watch

Time Measurement

1705-1737

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

Time Measurement

1840-1880

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

Chronometer in Gold Case by Thomas Earnsham, 1795-1810

Time Measurement

1795-1810

Cubical polyhedral sundial

Time Measurement

1751-1800
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

Gear wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Sundial making tool

Time Measurement

1690-1710

Compendium by Elias Allen

Time Measurement

1630-1653

Clock weight from long-case clock by Fromanteel

Time Measurement

1660-1665

Sand glass in four pillared wooden mount

Time Measurement

1750-1800

Model of a Television Set Tammeter, 1955-1965

Time Measurement

1955-1965

Chronometer watch by Thomas Earnshaw No.498, with

Time Measurement

Gear wheel from long-case clock by Fromanteel

Time Measurement

1660-1665

Compendium by Augustine Ryther

Time Measurement

1588

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

Time Measurement

1843-1897

Pulley from long-case clock by Fromanteel

Time Measurement

1660-1665

Clock

Time Measurement

"Ingersoll" wrist watch

Time Measurement

1915

Casio gents LCD digital watch, black resin case an

Time Measurement

1999

Chronometer watch in silver case

Time Measurement

hallmarked 1788

Sand-glass

Time Measurement

Column dial by Henry Robert, Horloger, au Palais R

Time Measurement

1831-1870

Verge watch in silver inner case, shagreen outer c

Time Measurement

Sand-glass

Time Measurement

Sand-glass

Time Measurement

Lantern clock with verge escapement and rach and s

Time Measurement

Equinoctial ring sundial

Time Measurement

1719-1791

Gold verge watch with fusee

Time Measurement

Bracket timepiece in mahogany case with silvered d

Time Measurement

Watch with Flamenville dead-beat escapement, signe

Time Measurement

Cylinder watch in pinchbeck inner case, tortoisesh

Time Measurement