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.
Want to find some information on your unit? In the search box below, enter a unit serial number and find it! Please note that lookup by Sales Order and Purchase. Farmall Tractor Serial # Reference. Year Starting Serial Number; 1932: 501: 1933: 526: 1934: 4881. The serial number is listed after the word “Serial No,” “Serial Number,” “SSN,” “S/N,” or “SN.” Check the sticker label on the back of warranty card. Check the sticker label on the side of the package box.