Early balance spring watch by Thomas Tompion
1675-1679
1675-1679
1763
1675-1700
1843-1875
2010
1625
2013
1568-1590
1821
1860-1866
1897
1963
2024
1912
1955
1784
1899
1800
2020
1855-1860
1867-1868
1801-1900
2022
1658
1803-1847
circa 1995
1640
1501-1599
1872
1701-1900
1839
1755-1765
1935-1978
1914-1918
1875-1885
1898-1910
1965
1601-1900
1774-1800
1909
1851-1880
1947-current
1601-1700
1880-1936
2019
late 19th century