The Collections

John Harrison

Created: 01.02.13


  • Name
  • Artist / Maker
  • Date made
  • ID
  • Harrison, John
    1759
    ROG070
    H4

    Marine timekeeper, H4. This is Harrison's prize-winning longitude watch, completed in 1759. Harrison had been working on improving watches as a sideline to his development of the much larger H3. In 1753 a pocket watch was made to Harrison's design…

  • Holl, W
    1835
    F1764
    John Harrison. From an Engraving by Tassaert, published in 1768, after a painting by King. under the Superintendance of the Society for the Diffusion of Useful Knowledge

    'John Harrison. From an Engraving by [P.J.] Tassaert, published in 1768, after a painting by [Thomas] King. Under the Superintendance of the Society for the Diffusion of Useful Knowledge.' A half-length portrait of John Harrison, whose chronometer H4 solved the…

  • Harrison, John
    1757
    ROG068
    H3

    Marine timekeeper, H3. Started in 1740, this third timekeeper took Harrison nearly 19 years to build and adjust, although it was not to win him the great longitude prize: he found that he just could not persuade the two large,…

  • Harrison, John
    1739
    ROG067
    H2

    Marine timekeeper, H2. Made between 1737 and 1739, this is a larger and more solidly built version of H1, see ZAA0034, with the additional refinement of a remontoire - a device to ensure that the drive to the two balances…

  • Harrison, John
    1735
    ROG065
    H1

    Marine timekeeper, H1. This is the first experimental marine timekeeper made by John Harrison in Barrow-on-Humber between 1730 and 1735 as a first step towards solving the longitude problem and winning the great £20,000 prize offered by the British Government.…

  • Harrison, John
    1745
    CH354.4
    Part of John Harrison's third timekeeper (H3)

    An original manuscript drawing by Harrison of parts of H3 during its evolution, probably in the late 1740s. The drawing shows the rear of the clock with the detail of the special isochronising device with the caged roller bearing and…

  • King, Thomas
    1 Aug 1768
    C.S.1 II
    John Harrison...Inventor of the Compound Pendulum & of several Time Keepers...

    Print, after Thomas King's 1767 oil portrait, in the collection of the Science Museum, London. The timekeeper in the gimballed table case behind Harrison is 'H3'. In the original portrait Harrison's right hand holds the watch he had made by…