Wempe Chronometer Age Determination

List of Wempe chronometer tests in the context of annual competitions at the German Maritime Observatory from 1908

Competition
            
Test year Chronometer no.

32 1908/09 338*
33 1909/10 390
34 1910/11 455
35 1911/12 479
36 1912/13 536
37 1913/14 595
38 1914/15 638
39 1915/16 788
40 1916/17 839
41 1917/18 903
42 1918/19 951
43 1919/20 958
44 1920/21 956
45 1921 to 1926 are the numbers
46 members of the tested chrono-
47 meters not published
48 years old!
49
50 1926/27 1017
51 1927/28 1020
52 1928/29 1022
53 1929/30 1031
54 1930/31 1043
55 did not participate in 1931/32
56 1932/33 1059

Here is a break in the numbering, it starts again with the number 1932

57 1933/34 1933
58 1934/35 1941
59 1935/36 1975
60 did not participate in 1936/37
61 did not participate in 1937/38
62 1938/39 2054

Between 1915 and 1917, the so-called special tests, I to IV palladium tests, were also conducted. 71 chronometers were examined in these tests.

During the Second World War, no chronometer tests by the German Naval Observatory are documented

Serial numbers of tested Wempe chronometers from 1945

1945 4919
1946 5138
1947 5315
1948 5413
1949 no information
1950 5481
1951 5484
1952 5542
1953 5701
1954 5810
1955 6120
1956 6351
1957 6535
1958 6738
1959 6870
1960 7061
1961 7220
1962 7348
1963 7400
1964 7497
1965 7680
1966 7681-7910
1967 7911-8200
1968 8201-8505
1969 8506-8760
1970 8761-8940
1971 8941-9080
1972 9081-9182
1973 9183-9281
1974 9282-9320
1975 9321-9340
1976 9341-9350
1980/81 9351-9364
1989 from 9366

In 1942, production of the standard chronometer began, starting with No. 2800.