Tavannes Watch Serial Numbers

Tavannes Watch Serial Numbers Rating: 3,8/5 9473 votes

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Info, specs, and value American antique pocket watches, with serial number lookups for manufacturers such as Elgin, Illinois, Waltham, and Hamilton.

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I recently had a query on dating these movements so have posted the answer here so I'll not have to do it again.
The serial number on these movements are under the dial as show to the right. My dating is based on a reasonable number of watches, listed below, in hallmarked silver or gold movements. The sample is heavily biased to watches retailed by J.W. Benson, largely because other retailers frequently used Swiss hallmarked silver cases which do not carry a date mark. Benson appear to have switched from Revue to Tavannes in about 1932 the database is only good for the 1930s.Watch
It must be remembered that a movement might not go straight into a case which itself may have been on the shelf for a while so there will be some overlap, also the hallmarking years of the various assay houses are not in line with each other or the with calendar but the difference is small and the date is likely to be accurate to plus or minus a year. (updated Feb 2017)
Serial
SerialDate
4,322,549 1908
12,487,883 1919
14,708,666 1919
13,079,475 1921
14,262,246 1924
15,485,579 1926?
15,485,952 1926?
15,939,146 1926
17,482,498 1929?
16,624,975 1930?
17,865,828 1932
17,886,973 1932
17,888,724 1932
17,888,811 1931
17,889,975 1932
17,899,152 1931
17,899,219 1932
17,889,918 1932
17,902,501 1932
17,903,525 1932
17,903,625 1932
17,908,930 1932
17,909,034 1932
17,909,035 1932
17,944,833 1933
17,944,871 1933
17,966,044 1933
17,970,131 1933
18,045,354 1935
18,045,567 1935
18,050,727 1935
18,052,802 1936
18,055,283 1936
18,055,497 1936
18,055,498 1936
18,055,544 1936
18,066,750 1935
18,070,392 1936
18,076,649 1936
18,090,883 1936
18,112,605 1937
18,112,379 1936
18,113,219 1937
18,141,556 1937
18,146,434 1937
18,146,664 1938
18,199,372 1937
18,240,750 1938
18,245,978 1938
18,246,001 1938
18,252,273 1940Benson stock?
18,253,220 1939
18,256,774 1938
18,265,158 1938
18,268,000 1940
18,276,566 1947?