Horological Meandering

eterna-fan
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a side note on dating eternas

the question has come up a few times about dating eternas. recently, i was made aware of a german website where a list of serial numbers and their production dates resided. i'm not sure why, but i can't seem to copy/paste said list, so i'll provide the link.

Here is the numeric sequence (I need to remove the link to the external site):

                                 1894       630 000           626 752  IXL

          1900   1 045 000          
1901   1 090 000
1902   1 135 000
1903   1 180 000
1904   1 225 000
1905   1 270 000
1906   1 315 000
1907   1 360 000
1908   1 405 000
1909   1 450 000
                             1910   1 500 000          1 556 288 
1911   1 550 000
1912   1 600 000
                            1913   1 650 000          1 663 980
1914   1 700 000
                            1915   1 750 000          1 914 868
1916   1 800 000
1917   1 850 000
1918   1 890 000
1919   1 930 000
1920   1 970 000
1921   2 010 000
1922   2 050 000
1923   2 090 000
1924   2 130 000
1925   2 170 000
1926   2 210 000
1927   2 250 000
1928   2 290 000
1929   2 330 000
1930   2 370 000
1931   2 410 000
1932   2 450 000
                            1933   2 500 000          2 451 950
1934   2 550 000
1935   2 600 000
1936   2 650 000
                            1937   2 700 000          2 740 007
1938   2 750 000
1939   2 800 000
1940   2 850 000
1941   2 900 000
1942   2 950 000
1943   3 000 000
1944   3 050 000
1945   3 100 000
1946   3 170 000
1947   3 240 000
1948   3 310 000
1949   3 380 000
1950   3 450 000
1951   3 520 000
1952   3 600 000
1953   3 700 000
1954   3 800 000
1955   3 900 000
1956   4 000 000
                             1957   4 100 000           4 059 XXX
1958   4 200 000
1959   4 300 000
1960   4 400 000
1961   4 500 000
1962   4 650 000
1963   4 800 000
1964   4 950 000
1965   5 100 000
1966   5 250 000
1967   5 400 000
1968   5 550 000
1969   5 700 000
1970   5 850 000
                                          1971   6 000 000           5 909 304             
1972   6 100 000
1973   6 200 000
1974   6 300 000

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