Tipped pcd inserts with brazed pcd cutting edges are used for machining non-ferrous hard metals such as aluminum alloy, tungsten carbide, copper, zinc. The working tips of pcd inserts are made by pure polycrystalline diamond, pcd tipped inserts are mainly for cnc continuous turning and milling automobile engine block, cylinder head, transmission parts, gearbox. S mime reader for mac. Seeland Watch Serial Number The serial number, in addition to the reference number, ensures that no 2 watches will bear the same numbers, even if they are physically identical. Reference and serial numbers on the case-back of a Breitling Navitimer.
| The broad arrow British government property mark, found in various forms on watch dials, cases and movements. |
| British Army issue pocket watch in India, c.1900 |
| Broad arrow and serial number of H.Williamson issue pocket watch, c.1914. |
| Aviation issue mark – Royal Flying Corps pocket watch, 1914-1917 |
| Royal Air Force crest found on clock dials, c.1937-1945. |
| Service cancellation mark added in the 1930's to a military issue wristwatch of c.1918. |
| Air Ministry property stamp found in various forms on watches, clocks and their movements, 1918-c.l953 |
| Deutsche Reichsmarine issue watch mark, first used by the German Navy in 1848, although the RM title was not officially accepted until 1871. The mark continued in use until 1933. |
| Traditional German Navy issue watch mark, 1871-1918 |
| German Navy watch mark, c.1932 |
| Kriegsmarine second class chronometer watch mark with naval issue number. |
| Kriegsmarine issue watch mark with naval number and manufacturer's code number. |
| Kriegsmarine issue chronograph watch mark. |
| Kriegsmarine issue watch mark with Naval Artillery code. |
| Marks on Kriegsmarine issue U-boat clock, coded for service with the North Sea fleet. |
| Kriegsmarine issue clock mark. |
| German Flying Corps mark found on pocket watches, pre-1918, with Zeppelin airship code. |
| Geramn Flying Corps mark, pre-1918 |
| United States Shipping Board merchant navy property watch mark, 1914-1940. |
| US Navy issue watch mark and serial number, c.l920. |
| Bureau of Ships property mark, used on US Navy issue watches since 1920. |
| US Naval Observatory mark bearing 1941 date, found on inspected chronometer watches. |
| United States Marine Corps issue watch |
| Corps of Engineers issue mark on chronograph watch, c. 1917. |
| US Army property mark applied over US Navy issue stamps. The original markings have been milled away prior to reissue of the Hamilton Mod.22 to a different branch of the armed forces, probably post-1945. |
| Torpedo Watch marking used on a French Navy chronometer watch, c. 1900-1918. |
| Wojsko Polskie – Polish army property mark, pre-1939. |
| Polish Air Force issue mark found on Royal Air Force coded wristwatch, c.l940 |
| Regia Aeronautica – Royal Italian Air Force pilot's chronograph watch, pre-1945. |
| Chinese Navy issue wristwatch mark. |
| Swedish Navy issue chronometer watch. |
| Japanese character mark on rear o Imperial Navy issue wristwatch, pre-1945. |
| Royal Dutch Army issue watch mark, c.1939. |
Instructions for using our serial number look-up tables
Arcsoft totalmedia 3 5 key keygen for mac. 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! Psp all star yakyuuken 2. 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.
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.
Watch Serial Number Check
Be sure to use the serial number on the watch movement (the mechanism).
Do not use the serial number from the watch case.
