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The Encyclopedia of Horology

Marine timekeeper (watch form) · England

Harrison H5

Partially verified

A refinement of H4, tested by King George III at Kew, which helped Harrison secure further reward from Parliament in 1773.

Technical facts

Form
Large watch-form timekeeper

Historical significance

  • A refinement of H4, tested by King George III at Kew, which helped Harrison secure further reward from Parliament in 1773.

Related photographs

Harrison H4 clockwork 2
Harrison H4 clockwork 2 — Photograph by Mike Peel (www.mikepeel.net)., CC BY-SA 4.0. Wikimedia Commons file page
Harrison H4 clockwork 3
Harrison H4 clockwork 3 — Photograph by Mike Peel (www.mikepeel.net)., CC BY-SA 4.0. Wikimedia Commons file page

No confidently matched photograph of this subject has been found yet. These photographs show a closely related record, and are not examples of the type described on this page.

Sources & references

  1. Clockmakers' Museum collection notes
  2. Betts, J., Harrison

Where sources disagree, the disagreement is stated rather than resolved silently.