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Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", 1843-1897
Spring-driven pendulum clock by Johannes van Ceulen of The Hague, c. 1695
Early Balance Spring Pocket Watch by Thomas Tompion with Regulator Type Dial, 1675-1679
Pendulum clock designed by Galileo in 1642 and made by his son in 1649, model.
1642-1649 (original); 1883 (model)
Three train, flatbed turret clock by E. Dent with double three-legged gravity escapement, c. 1939.
Byzantine portable universal altitude sundial with geared calendrical device
Two-thirds scale copy of the Hampton court astronomical clock dials, with epicyclic gearing unit, outer fixed chapter ring and rotating astronomical dial