
Marine Timekeeper known as 'H5' by John Harrison and Son 1770
1770
1770
1775
1775
1770
1769
2000-100 BCE
1705-1737
1770-1775
1772
1775
1775
1771
4000-2001 BCE
1668; 1924
1990-95
1610; 1923
1642-1649 (original); 1883 (model)
1936
circa 3000 BCE
1772
1772
1775
100 BCE-300 CE; 1890-1920
2000-1350
1772
1972-3
2000-1000
1772
circa 1800 BCE
1775
15/7/27
1770
15/7/27
1840-160
circa 3000 BCE
3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
1769
1773
1774
1775
1771
1775
1775
1769-1770