
Early balance spring watch by Thomas Tompion
1675-1679
1675-1679
2000-100 BCE
1670
1680
1673
1680
1680
1680
1675
1670
1670
1672
1670
4000-2001 BCE
1990-96
1670-1680
1680
1671
1675
1675
1642-1649 (original); 1883 (model)
1936
1990-95
1610; 1923
1668; 1924
1910-1921
30 CE
1680
1674
1677
30 CE
2686-2613 BCE
1945-50
30-200
2000-1350
20-500
20-500
1678
1672
1675
2000-1000
3500-1000
100 BCE-300 CE; 1890-1920
1677
2000-1350
1972-3
2000-1000
1674-1679
circa 3000 BCE
1671