| 1704 | Jewelled bearings introduced by Facio de Duillier in Switzerland. |
| c1710 | Dial arch introduced |
| 1714 | Britain's Board of Longitude offers a £20,000 prize for a clock which will keep accurate
time at sea. |
| 1722 | George Graham builds his first compensated pendulum, using the rise in the level mercury (with heat) in cylindrical
bob to compensate the the downward expansion of the pendulum rod. |
| 1725 | John Harrison invents grid-iron compensated pendulum. |
| c1730 | First cuckoo clock makes its appearance in the Black Forest region of Germany. |
| 1728 | Harrison brothers, James and John, complete and test first prototype 'sea clock', H1. |
| c1730 | George Graham (1673-1751) introduces the dead-beat escapement. |
| 1736 | Sea trials of the first Harrison sea clock, H1. |
| 1739 | John Harrison completes second sea clock, H2. |
| c1750 | In one of the most bizarre stories of horology, a cargo of English clocks destined for Russia is washed up on shores of the Danish
island of Bornhlm, sparking an industry on the island making clocks in a similar style. |
| 1741 | Louis Amant invents the pin-wheel escapement. |
| 1741 | French clockmaker Abraham-Louis Breguet is born at Neuchatel, Switzerland (dies 1823). |
| 1749 | Frederic Japy, said to be the father of French horology, is born at Beaucout in the
Franche-Comte. Dies in 1812. |
| mid 1700s | Silvered dial comes into use. |
| 1759 | The third Harrison sea clock, H3, built by John Harrison with the assistance of his son,
William, is ready for sea trials |
| 1761 | Fourth Harrison sea clock, H4, is successfully trialled at sea and Board of Longitude
makes an interim award of £2500 and demands another sea trial. |
| 1764 | H4 trialled again in voyage to Barbados, time correct to one minute over period of three
months. Board of Longitude awards Harrison a further £7500. |
| c1770 | The use of marquetry in clock cases is revived during the Adam period |
| 1770 | White or painted dial longcase makes its appearance. |
| 1772 | Board of Longitude give Harrison the outstanding £10,000 after being receiving support
from King George III. |
| 1776 | John Harrison dies (March). |
| 1790 | Jaquet-Droz and Leschot of Geneva advertise first ladies wristwatch. |
| 1797 | British Parliament passes an Act which levies tax on all clocks and watches, an
occurence which gave its name (quite erroneously) to the 'Act of Parliament clock'. |
