Early balance spring watch by Thomas Tompion
1675-1679
1675-1679
1990-96
1690-1710
1675-1700
1675-1685
1708
1685
1695-1696
1695-1700
1680-1690
1710
1692
1700
1675
1700
1680
1680-1685
1701-1708
1675-1700
1680-1700
1708-1710
1685
1675
1700
1690
1670-1680
1680
1702
1690
1680
circa 1710
1680
1670
1690-1695
1700
1700
1700-1710
1700
1675
1670
1670
1860-1920
1610; 1923
1672
1675-1685
1675-1685
1695-1705
1685-1695
1673
1675-1700