
Harwood self-winding wrist-watch of about 1930
circa 1930
circa 1930
1925
1930
1927
circa 1930
1928
1932
1955; 1830
1925-1928
circa 1927
circa 1930
1924
1926
1931
1927
1931
1931
1927
1925
1928
1928
1925
2000-100 BCE
1930-1931
before 1928
Before 1932
1927-1929
1925-1927
1932
1932
1934
1927
1926
1926
1930
1926
1801-1892 (prepared); 1946 (element replaced)
1925
1925
1926-1932
1927
1926
1931
1926
1839 (original); circa 1988 (replica)
1925-1930
1930
1930 (replica); 1834 (original)
1926-1928
1990-96