
Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
1770
1775
1066; 1876
1780
1776-1780
1776-1780
1776-1780
1770
1776
1642-1649 (original); 1883 (model)
1770-1780
2000-100 BCE
1778
1778-1780
1776-1780
1776-1780
1775
1776
1705-1737
1772
1775
1775
1780
1771
1780
1770-1775
4000-2001 BCE
1990-95
1668; 1924
1770-1780
1936
1730-1760 (original); 1931-1939 (replica)
1845-1964
1770
1774
circa 1800 BCE
1775
circa 3000 BCE
3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 2000 BCE
1950-159
30
1-79 CE; before 1914
1776