Croton Watch Serial Number Lookup

This page will enable you to track down the production year of your vintage watch.

To determine the approximate age of your watch, the serial number should be located either on the case back or on the inside of the watch stamped oto the movement Simply match up the number on the watch to the nearest number on this page to determine the APPROXIMATE age. Wittnauer watches in stock now. Daily new offers. Safe favorite watches & buy your dream watch on Chrono24.com. Arabic Serpentine Dial - American Watch Company (Waltham) Grade Appleton, Tracy & Co. 18-Size, Model 1857, 15 Jewels, c.1859, Serial No. Roman Numeral dials dominated market trends during the early decades of the American watch industry.

If you want to know which year your vintage watch was produced?– Then take a closer look at ” Serial numbers by year”.

While Omega keeps the serial number on the inside of the backcase Certina leaves the serial number visible on the out site of the watch back case accompanied with a reference. The two numbers serves the same pourposes as explained in the Omega chapter above-written. Though in the periode dating from 1958 to 1974 the reference number on Certina watch carried an encrypted message giving away, which calibre the watch was equipped with, which material the case was made from and which watch model you are dealing with.

Together with a reference number, the brand Omega placed their serial numbers on the inside of the backcase. One serial number indicates in which year or periode the watch was produced while the other number (the reference number) indicates which model or serie the specific watch belongs to.

In some cases, such as the watches produced by the brand Eterna, serial numbers were not used as markers to know the year of origin. Instead Eterna made sure we can date watches since their calibers were only used in short periods of time.

To put a date of production on your vintag Longines watch you have to locate the serial number which most often is found on the in- & out-site of the back case. When you have got the serial number then look it up in our Longines serial number matrix. While seaching for the serial number please remember to enjoy the sight of your Longines watch movement.

The very early Tissot watches had the serial number engraved on the back site of the dial. Later on the serial numbers were made easier to locate. On most vintag Tissot watches you will be able to find the serial number engraved into the watch movement. While your are at it remember to note the calibre number of your watch it may come in handy some day.

Introduction on how to find & use serial numbers

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Date your watch

Dating your Accutron is really quite a simple procedure.
Bulova mark there dates using a date code system . This can be found on the back of the case and on the movement. No need to worry about long serial numbers on these!

The code consists of one letter and one number, eg. M7. They used the letter M to signify the decade 1960 to the end of 1969, and the letter N to indicate 1970 to the end of 1979. The digit represents the actual year in that decade. Therefore, M7 is interpreted as 1967.

L=1950s, M=1960s, N=1970s example: L3=1953, M4=1964, N5=1975, etc.

It is possible that you may have a watch in which the date code on the movement is different to the date code on the case. That is common, however, it has been known to never seen an original watch that had a variation of more than one year. If you see one that has three or more years difference in the date codes, I suggest that the watch has been re-cased or made from 2 separate watches. This probably doesn't really matter unless you are a serious collector and are only interested in completely original items.

The dates codes started in 1948 with'A8' and carried on in sequence with a few exceptions , they missed O out I suppose because of the confusion with zero and then missed 'Q,R and S' out for what reason I don't know maybe someone at bulova just didn't like those letters , after 1999 to my knowledge they reverted back to the 'A' series numbers again I'm not a 100% percent sure but I had a very modern quartz bulova which clearly beared a date code of 'A0' so that's what I'm baseing it on