Timekeeping, Astronomical regulators and precision clocks

The Collection

Your selection

Title

Actions

Buy this image Add this to a collection
Tags
Share or embed this object   
 


Please contact the Picture Library if you would like to use this record and image under licence.

Year-Going Clock

ZAA0885
Timekeeping

Object connections:

Collection Timekeeping, Astronomical regulators and precision clocks
Gallery locationROG (Floor plans)
Publication(s)Treasures of the National Maritime Museum
Gloria Clifton and Nigel Rigby
View this book in the library

Object details:

Object ID ZAA0885
Description Year-going clock by Thomas Tompion, 1676 This is one of two clocks especially commissioned by Sir Jonas Moore, Master of Ordnance and patron to the first Astronomer Royal, John Flamsteed, for use at the Royal Observatory from its opening in 1676. The weight-driven clock was originally fitted with a 13 foot pendulum that was suspended behind the wainscot in the north-eastern corner of the Great Room. The clock offered unprecedented accuracy and allowed Flamsteed to determine that the speed of the Earth’s rotation was constant. This proof was fundamental to the work at the Observatory in providing an accurate method of determining Longitude at sea. Following Flamsteed’s death in 1719, the clock was sold by his Widow, Margaret and was subsequently converted for use as a domestic clock. After a 275 year absence the clock was purchased by the Museum and is now displayed in the Octagon Room (formerly known as the Great Room) at the Royal Observatory, Greenwich.
Date made 1676

Artist/Maker Tompion, Thomas
Place made London, England
Credit National Maritime Museum, Greenwich, London. Acquired with the assistance of The Art Fund, National Heritage Memorial Fund, Friends of NMM, Save & Prosper Educational Trust, The Worshipful Company of Clockmakers, J Paul Getty Charitable Trust, The Monument Trust, Christie's, Peter Moores Foundation and others, 1994.
Materials glass; wood; Metal
Measurements Case & Dial: 3120 x 645 x 295 mm; Movement: 1342 x 200 x 102 mm
Parts
Help us

Do you know more about this?

Share your knowledge