
Spring-detent escapement watch with gold case by John Arnold and Son
1796
1796
1796-1797
1797
2000-100 BCE
1772 (original); 1919 (model)
1990-96
1797
1705-1737
1797
1797
4000-2001 BCE
1610; 1923
1642-1649 (original); 1883 (model)
1668; 1924
1936
2050-1750 BCE
1990-95
300 BCE; 1905-1915
1845-1964
1850-1899
1774; 1923
2000-100 BCE
1730; 1967
3000-2500 BCE
1796
circa 3000 BCE
2000 BCE
1796
1797
1796
1797
1797
1796
1797
1796
1797
circa 1830
1676; 1840-1865
1797
1796
1796
1796
1796
1796
1796
1797
1796
1797
1797
1877 (copy); 1700-1731 (original)