Dating bulova watches, 1875 - present
Bulova - Date Symbols, Codes, Serial Numbers | capitaldistrictnursingresearchalliance.com
This exception is particularly true of solid gold and silver models made in the s and s. This is the format seen from and beyond, and is, therefore, thoroughly explained in the section that follows.
The number appears to have no date correlation Dial signed "Bulova" or "Lady Maxim" or, possibly, "Hudson Maxim" Movement has a caliber designation--most likely an "A" or "10" caliber movement Will have a movement serial number No movement date code Case serial number begins with "11" or "12" True wrist watch with the crown at the 3 o'clock position popular, but still see some converted pocket watches Case signed "American Standard" with shield symbol Case description of " "Warranted 25 Years" and most likely 19K Gold Filled Movement signed Dating bulova watches Watch Co.
That is, the first digit of the serial number indicates the year of manufacture within each decade, with some exceptions, which are explained in more detail at the end of this section.
1924 - 1949
Stainless steel models made in the s, such as the Watertight or Watertitecreate another exception to the serial number method of dating a Bulova case. No doubt, some aspects of these conclusions will change over time as more examples are collected.
The number appears to have no date correlation Dial signed "Bulova" or "Lady Maxim" or, possibly, "Hudson Maxim" Movement has a caliber designation--most likely an "A" movement May or may not have a movement serial number No movement date code Case serial number begins with "10" True wrist watch with the crown at the 3 o'clock position gaining popularity, but converted pocket watches still seen Case signed "Wadsworth" or "American Standard" with shield symbol Dating bulova watches How to reset matchmaking rating dota 2 of "Warranted 20 Years" or "Warranted 25 Years" or "Warranted to Assay" solid gold models ; may also include "Monogram Quality" Movement signed "Bulova W.
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.
Many have gone out of business, while others destroyed records to save space. These models typically have short, 3- or 4-digit case serial numbers that obviously do not conform to the standard 7-digit format.
So, the existence or non-existence of a serial number is just one of many factors to be considered when dating a watch. In fact, these watches sometimes have no case serial number at all.
In the s models that follow this format, the case and movement date codes may be atypical in format, such as "A8" or "48" for Aquarium dating "A9" or "49" for Rather, the date must be "de-coded" using symbols, serial numbers, and two-character codes placed on various parts of the watch.
On those watches, it is as though the first digit that should indicate the date has simply been left off.
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Becoming familiar with other examples and with the available advertisements will also help determine when elements, such as dials, hands, and straps, are not original to the watch and should not be considered when determining the date.
I hinted earlier in this section of the discussion that there were exceptions to the rule that the first digit of the case serial number indicates the date of manufacture for watches made from through There are several ways to get an idea of when your watch was made.
I am slowly adding serial number tables to this site. The movement code is a small symbol, such as a square, circle, or triangle, which corresponds to a particular year within each decade.
For models manufactured beforethere is typically no date code on the case itself though there are exceptions seen in the later s. Another fact to consider is the still relatively small data set for this time period.
Table of Bulova Date Symbols: 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 Specifically, very early movements read "Bulova W. There are actually at least five currently known exceptions to that rule, and the list keeps growing as more watches are studied.
The number appears to have no date correlation Dial signed "Bulova" Movement has a caliber designation--most likely an "10" movement Will have a movement serial number No movement date code Case serial number begins with "12" or "13" True wrist watch now predominant style Case signed "American Standard" with shield symbol or "Bulova Quality" Case description of " "25 Years" if signed "American Standard" or "Filled" if signed "Bulova Quality" Movement signed "Bulova Watch Co.
Most Accutrons were produced as wristwatches, but Bulova also produced an Accutron pocket watch for a brief period in the 's. These numbers are stamped on the back outside of the case.
When selling a watch, it is very important to accurately date both the movement and the case and to inform potential buyers of that information.
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. There, the Setting and Timing units used the data to set the time on all of the company's timepieces in the most accurate way possible.
Here are samples of the styles that each decade offered. Similarly, the date of the case often can be partially determined by the case serial number.
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