Serial Numbers Rolex Locating your Rolex serial number. The serial number of your watch is engraved on the case at the 6 o'clock end between the lugs. You will need to remove the bracelet/strap to see it. The model reference is engraved in the same place at the 12 o'clock end. To check an authentic Armani watch, verify the code number that is given in the product tag. Check the serial number or code number and compare it online at the Armani website or visit your nearby outlet. Feel the Material. The real Armani watch will be made of the highest quality material. Any watch with rough edges, or a dull shine, will be a fake.

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Determining the Date of a Bulova Watch For purposes of assigning a date, Bulova watches break down nicely into three basic groups: 1) pre-1926, 2) 1926 through 1949, and 3) 1950 and beyond. Those three date ranges are differentiated by the presence or absence of certain case and movement markings as well as the nature of any such markings, as explained below.

In general, for all time periods, it is important to understand that Bulova watches never provide an obvious date of manufacture anywhere on the watch. Rather, the date must be 'de-coded' using symbols, serial numbers, and two-character codes placed on various parts of the watch. These codes and the manner in which they should be interpreted is the subject of this article. Many observers of Bulova watches are confused by the sometimes seen patent dates stamped on the inside of some Bulova watch cases, and they misinterpret such dates as the time of manufacture. In point of fact, those patent dates apply only to certain aspects of the case design and indicate only when those general designs were patented. Those designs were used on many watches produced over a number of years, and the applicable patent date in no way indicates when any particular watch was produced.

Below are images showing the two patent dates that often cause confusion. Inside case with June 10, 1924 patent date Inside case with January 11, 1927 patent date Pre-1926 Watches manufactured prior to 1926 are difficult to date with certainty. For example, movements made prior to 1924 do not bear the standard movement date code found on watches dated 1924 through 1949.

(For a list of those codes, visit.) Additionally, the case serial numbers on those early watches tend to begin with '1' or '2' and appear to bear no correlation to the date the watch was made. Therefore, determining the date of one of these early models is difficult and often impossible to accomplish with absolute certainty.

There are, however, several clues that can be of assistance in at least narrowing down the date. One such clue is the case signature. Very early Bulova models do not have 'Bulova' stamped on the case. Rather they bear one of the 'American Standard' case signatures. The case signature begins to include the Bulova name around 1924. For a detailed analysis, and examples, of Bulova case signatures through the years,. Additionally, a very early movement is likely to bear a different Bulova signature than the signature seen in later models.

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Specifically, very early movements read 'Bulova W. Duralast jump starter 1200 amp. , rather than 'Bulova Watch Co.' , as seen on slightly later models. This change quite likely coincides with the April 1923 re-incorporation of the J.

Bulova Company to the Bulova Watch Company, thereby providing an important date reference for these watches based on the movement signature. That is, any watch movement with the signature 'Bulova W. Likely pre-dates April 1923. Moreover, that change corresponds nicely with the introduction of movement date codes. So, we may further extrapolate that any watch without a movement date code, with 'Bulova W. On the movement, and with an 'American Standard' only case signature, pre-dates April 1923.

Narrowing down the date beyond that with certainty may not be possible based on current information. Below are examples of the two movement signatures seen in early Bulova watches, with the example on the right becoming the standard signature after April 1923. Pre-1924 movement showing 'BULOVA W.

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Signature Post-1923 movement showing 'BULOVA Watch Co.' Signature Of further assistance in determining the date of these watches may be the movement caliber, if one is printed on the movement. Consultation with online movement lists may provide at least ballpark information regarding the date of the watch. For one such movement list visit. However, it is important to note that all such movement lists are based on observations of examples rather than any official Bulova documentation. So, the lists may be incomplete and even inaccurate to the extent that they contain information on movements that are not on-hand and available for examination and verification. I have recently begun to develop a theory regarding certain 'markers' that may help us identify the date--at least with a reasonable degree of certainty--of these very early watches.