Record Watch Company Serial Numbers
Instructions for using our serial number look-up tables
Serial Number Lookups Hamilton Seth Thomas Seth Thomas Company Tower Clock Records, Thomaston, Connecticut. These volumes record the tower clocks produced and sold by the Seth Thomas Tower Clock Company from the years 1873 to 1941. This project has been generously funded by several NAWCC Members and Chapters. The documents are very large files; therefore, please. This form may be used to search the Waltham Serial Number database. You can use the serial numbers for a range of serial numbers or the dates for a range of dates. If you leave those blank and enter a model year in the model field you will see a list of all the runs for that model in the results screen.
This page contains INSTRUCTIONS for using the serial number look-up tables that are found on many of our watch company history pages. The example below uses information from the American Waltham Watch Company, but that is just an example. You should consult the serial number table for the specific brand of watch movement you are trying to date by selecting a company from the menu on the left.
Not all vintage watches can be dated using the serial number. Some American watch brands did not use a consistent series of serial numbers, but most of the big manufacturers did. Most vintage Swiss pocket watches did NOT have serial numbers and can't be dated by this method.
Can't find YOUR exact serial number in our lookup tables?
Many watch companies made hundreds of thousands of watches, and some companies made millions of watches! It would be impractical to list the individual serial numbers of EVERY watch made... that would make some really long pages! Our serial number tables list RANGES of serial numbers. So to determine when your watch was manufactured, you will need to find where your serial number fits within the range of numbers.
Serial number look-up example:
Let's say you have a Waltham watch with serial number 21,607,210 as shown in the photo below. Note that we're using the serial number from the watch movement, not from the watch case. Looking at the table of Waltham serial numbers (see example below), you can see that number 20,900,000 was made in 1917 and 21,800,000 was made in 1918 (marked in red in the table below). Since your serial number falls between those two numbers, you know that your watch was made in 1917 or 1918.
Not sure which serial number to use?
You must use the serial number from the MOVEMENT of the watch... the working part with the wheels and gears... not the serial number from the watch case. Cases and watches were often made by different companies and each usually has its own serial number. You usually have to take the back off the watch case to see the movement serial number which may appear anywhere on the watch movement.
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Use the movement serial number. Do NOT use the case serial number!
This is an example only. Your movement serial number may not be in exactly the same location as the one in the photo, but you are looking for the serial number that is on the watch mechanism itself... not the serial number on the external case.
| Year | S/N |
|---|---|
| 1852 | 50 |
| 1853 | 400 |
| 1854 | 1000 |
| 1855 | 2500 |
| 1856 | 4000 |
| 1857 | 6000 |
| 1858 | 10,000 |
| 1859 | 15,000 |
| 1860 | 20,000 |
| 1861 | 30,000 |
| 1862 | 45,000 |
| 1863 | 65,000 |
| 1864 | 110,000 |
| 1865 | 180,000 |
| 1866 | 260,000 |
| 1867 | 330,000 |
| 1868 | 410,000 |
| 1869 | 460,000 |
| 1870 | 500,000 |
| 1871 | 540,000 |
| 1872 | 590,000 |
| 1873 | 680,000 |
| 1874 | 730,000 |
| 1875 | 810,000 |
| 1876 | 910,000 |
| 1877 | 1,000,000 |
| 1878 | 1,150,000 |
| 1879 | 1,350,000 |
| 1880 | 1,500,000 |
| 1881 | 1,670,000 |
| 1882 | 1,835,000 |
| 1883 | 2,000,000 |
| 1884 | 2,350,000 |
| 1885 | 2,650,000 |
| 1886 | 3,000,000 |
| 1887 | 3,400,000 |
| Year | S/N |
|---|---|
| 1888 | 3,800,000 |
| 1889 | 4,200,000 |
| 1890 | 4,700,000 |
| 1891 | 5,200,000 |
| 1892 | 5,800,000 |
| 1893 | 6,300,000 |
| 1894 | 6,700,000 |
| 1895 | 7,100,000 |
| 1896 | 7,450,000 |
| 1897 | 8,100,000 |
| 1898 | 8,400,000 |
| 1899 | 9,000,000 |
| 1900 | 9,500,000 |
| 1901 | 10,200,000 |
| 1902 | 11,100,000 |
| 1903 | 12,100,000 |
| 1904 | 13,500,000 |
| 1905 | 14,300,000 |
| 1906 | 14,700,000 |
| 1907 | 15,500,000 |
| 1908 | 16,400,000 |
| 1909 | 17,600,000 |
| 1910 | 17,900,000 |
| 1911 | 18,100,000 |
| 1912 | 18,200,000 |
| 1913 | 18,900,000 |
| 1914 | 19,500,000 |
| 1915 | 20,000,000 |
| 1916 | 20,500,000 |
| 1917 | 20,900,000 |
| 1918 | 21,800,000 |
| 1919 | 22,500,000 |
| 1920 | 23,400,000 |
| 1921 | 23,900,000 |
| 1922 | 24,100,000 |
| 1923 | 24,300,000 |
| Year | S/N |
|---|---|
| 1924 | 24,550,000 |
| 1925 | 24,800,000 |
| 1926 | 25,200,000 |
| 1927 | 26,100,000 |
| 1928 | 26,400,000 |
| 1929 | 26,900,000 |
| 1930 | 27,100,000 |
| 1931 | 27,300,000 |
| 1932 | 27,550,000 |
| 1933 | 27,750,000 |
| 1934 | 28,100,000 |
| 1935 | 28,600,000 |
| 1936 | 29,100,000 |
| 1937 | 29,400,000 |
| 1938 | 29,750,000 |
| 1939 | 30,050,000 |
| 1940 | 30,250,000 |
| 1941 | 30,750,000 |
| 1942 | 31,050,000 |
| 1943 | 31,400,000 |
| 1944 | 31,700,000 |
| 1945 | 32,100,000 |
| 1946 | 32,350,000 |
| 1947 | 32,750,000 |
| 1948 | 33,100,000 |
| 1949 | 33,500,000 |
| 1950 | 33,560,000 |
| 1951 | 33,600,000 |
| 1952 | 33,700,000 |
| 1953 | 33,800,000 |
| 1954 | 34,100,000 |
| 1955 | 34,450,000 |
| 1956 | 34,700,000 |
| 1957 | 35,000,000 |
| - | - |
| - | - |
This is an example using the Waltham serial number table. Be sure to use the table that is specific
to YOUR brand of watch when looking up your serial number.
Be sure to use the serial number on the watch movement (the mechanism).
Do not use the serial number from the watch case.
Including Serial Numbers, Grades and Production Dates
Trenton, New Jersey
1885 - 1908
The Trenton Watch Company was a successor to the New Haven Watch Company, which had been started in 1883 in New Haven, Connecticut, but had undergone financial reorganization in 1887.
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The Trenton Watch Factory, Trenton,
New Jersey, as it would have appeared in 1895.
Trenton produced nearly two million watches, most of which were lower to mid-grade pieces in the 7-9-11 jewel range. Most of the watches produced were intended for the domestic market, but factory records indicate that some watches were produced for export to England around the turn of the century. Trenton was subsequently sold to Ingersoll in 1908.
Trenton-produced watches were marketed under a variety of brand names, including: Trenton, Ingersoll Trenton, Fortuna, Calumet USA, Advance Watch Co, Marvel Watch Co, Reliance Watch Co, Locomotive Special and Engineers Special. Both the Engineers Special and Locomotive Special were marked as 23-jewel watches, even though they had only 7 functional jewels... the others were fake and were entirely for appearance! Similarly, the watches sold under the Marvel Watch Co. brand-name were marked 23-jewels, even though all but 7 jewels were non-functional. Some of these 'fake jewel' watches can be quite collectible today.
Trenton also produced two 18-size fly-back chronograph models, both with 9 jewels. Based on a Grade 40 or 41 with chronograph modifications, the watches were produced in limited quantity, and these watches are considered to be quite rare and collectible today.
Trenton Watch Company
Total Production: Approx. 1.2 Million Watches
| Year | S/N | Size | Model |
|---|---|---|---|
| 1887-1889 | 2001 - 61,000 | 18 | 1 |
| 1889 - 1891 | 64,001 - 135,000 | 18 | 2 |
| 1891 - 1898 | 135,001 - 201,000 | 18 | 3 |
| 1899 - ?? | 201,001 - 300,000 | 18 | 6 |
| 1891 - 1900 | 300,001 - 500,000 | 18 | 4 |
| 1892 - 1897 | 500,001 - 600,000 | 6 | 1 |
| 1894 - 1899 | 650,001 - 700,000 | 16 | 1 |
| 1898 - 1900 | 700,001 - 750,000 | 6 | 2 |
| 1900 - 1904 | 750,001 - 800,000 | 18 | 4 |
| 1896 - 1900 | 850,001 - 900,000 | 12 | 1 |
| 1898 - 1903 | 900,001 - 1,100,000 | 18 | 5 |
| 1902 - 1907 | 1,300,001 - 1,400,000 | 18 | 6 |
| 1900 - 1903 | 2,000,001 - 2,075,000 | 6 | 2 |
| 1902 - 1905 | 2,075,001 - 2,160,000 | 6 | 3 LS |
| 1905 - 1907 | 2,160,001 - 2,250,000 | 6 | 3 PS |
| 1899 - 1902 | 2,500,001 - 2,600,000 | 3/0 | 1 |
| 1905 - 1906? | 2,800,001 - 2,850,000 | 6 | 3 PS |
| 1900 - 1904 | 3,000,001 - 3,139,000 | 16 | 2 |
| 1903 - 1907 | 3,139,001 - 3,238,000 | 16 | 3 OF |
| 1903 - 1907 | 3,500,001 - 3,600,000 | 16 | 3 HC |
| 1905 - 1907 | 4,000,001 - 4,100,000 | 0 | 1 |
Be sure to use the serial number on the movement (the works) of the watch. Do not use the serial number from the watch case.
Can’t find your serial number in the table? Click here for an explanation and example of how to use our serial number tables.
Need help finding the serial number on your watch? Click here for instructions on how to identify and open most common case types.