9 Early Chronometers Traced Back

9. Breguet's Marine Chronometer (c. 1815)

8. Mudge's Chronometer (c. 1790)

7. Larcum Kendall's K1 (c. 1769)

6. Thomas Earnshaw's Chronometer (c. 1780)

5. Arnold's Chronometer (c. 1770)

4. John Harrison's H4 (1761)

3. John Harrison's H3 (c. 1759)

2. John Harrison's H2 (1741)

1. John Harrison's H1 (1735)

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