Another wrench spanner for you Brits in the toolbox is always welcomed as Gruen collectors need all the help they can get. One was developed by Jack Wood, the other Barry Cooper. Both are top-notch Gruen historians and researchers. Before presenting the tables and techniques, a word about case dating If you want to know the exact age of your watch, then this date is what you are seeking. Let’s call this date, the date your Wadsworth case was made, the Wadsworth Date. For identification research, the critical date is the “Introduction Date”, the date the watch model was first introduced to the public for sale. The reason for this is simple; you are most likely to find the most information published about a watch when it first went up for sale. Advertisements and catalogs, the primary source of your identification data, will contain the newest models, not those that have been shipping for 4 or 5 years.
Bulova Date Codes
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.
The F is part of the serial number and is not used to date the watch. There should be a two digit number stamped on the caseback. L indicates the 50’s.L4 would be Dating a Bulova Ladies Watch. in reply to yours_truly__kll Dec 24, PM. sf_8. Enthusiast.
Founded in New York City in by Bohemian immigrant Joseph Bulova, the Bulova Watch Company has been responsible for numerous watch world milestones in its century-plus of existence and continues to innovate well into the 21st Century. Has jewel reliable Bulova movement. In the early s, with World War II threatening and American involvement in the conflict imminent, Bulova entered into a contract with the United States government to produce instruments that would aid the American war effort.
Many of these had little to do with timekeeping, including altimeters, variometers, telescopes for range-finding on artillery, and time fuses for explosives. As one of the few American watch companies, Bulova took its patriotic duty quite seriously: The company also devoted 25 percent of its advertising to the promotion of war bonds and stamps, a service for which it was awarded a distinguished service certificate by the Secretary of the Treasury Henry Morgenthau, Jr.
The Bulova 23 series — named for its jewel, self-winding movement — debuted in the s and brought wide popularity to a Bulova invention first used in a watch in This series was one of the first of many successful launches under the leadership of Omar Bradley, the decorated World War II general who had recently joined the Bulova company as Chairman of the Board of its Research and Development Laboratories. The Accutron was distinguished by its telltale humming instead of ticking, a sound generated by the vibrating tuning fork.
In , its 50th anniversary year, Bulova released a special, limited-edition replica of the Spaceview with a modern movement. Bulova also lent its expertise to the U.
Budget Watch Collecting/Watch Identification
The serial number on any Rolex watch enables you to estimate the approximate date of manufacture. However on some earlier models pre the serial number will be engraved on the outer case back. This digit number can be used to determine the date of manufacture. It is important to note however that final assembly, sale and delivery of the completed watch may be some time later.
For example a case or case back assembled in , may not have been used on a completed watch until or sold via a retailer until later still. From , Rolex started to also engrave the serial number on the inside case rehaut which is found between the dial and the crystal.
There are many Bulova watches with serial numbers. However, these numbers are for identification purposes only. There are no number tables that I am aware of to cross reference the date of manufacture with the serial number.
They are quite rare and very hard to find in such pristine condition. It still has the original patina, dark brown and copper just like the factory produced them. So many of these radios have had the patina polished away, missing the reins or the saddle. Blake has replaced all of the paper capacitors, tested and replaced bad resistors and checked all of the tubes. He performed a proper alignment, making this little five-tube, AM only radio play like new. A very cool gift for that horse lover, or man cave.
Here is another one of a kind radio design!
Determining the Authenticity and Identity of a Bulova Watch
This is probably the most common question watch collectors have. Sometimes it is easy to answer, and sometimes it is impossible. There have been a lot of watch manufacturing companies that have come and gone over the years.
Another factor to consider in dating a pre watch is whether there is a serial number printed on the movement, as, for the most part, Bulova stopped that practice after A few strays with serial numbers have been observed through the mids, but by far the majority of movements made after do not have a serial number.
Enter the serial number from the pocket watch movement below. Do not use the case number. Tips for looking up your watch How to Find Info About Your Pocket Watch The Pocket Watch Database has compiled data covering the major American pocket watch manufacturers and created an easy way to find information using the serial number on the watch movement. Here are a few tips to find information about your pocket watch: Always input the serial number from the pocket watch movement the “guts” of the watch.
Never use the serial number from the case or any other part. If the serial number includes a letter, enter it along with the number when using the lookup feature. Many pocket watch case backs screw off. Others may require a dull wide blade to pry or pop the cover. Be careful not to scratch or damage the movement. Always select the correct manufacturer, which is usually stamped on the watch movement.
If the manufacturer is not listed on the site, you may have a “private label” watch or it may not be American-made. Understand that many companies did not keep accurate or complete records.
Antiques, Fine Arts and Collectables Saleroom News
The two numbers serves the same pourposes as explained in the Omega chapter above-written. Though in the periode dating from to 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. Omega serial numbers by year 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.
Eterna Calibre numbers by year 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.
The myBulova website contains the worlds largest database of old, vintage and antique Bulova watches and pocket watches, including early Rubaiyat, Hudson and Lady Maxim models as well as the famous Bulova Lone Eagle and Bulova Accutron models.
Another British Military watch on the blog this time, and something of an enigma. The watch is very similar in style and size to the W10 made by Hamilton from and subsequently by CWC from and it shares all of the attributes required to adhere to the strict standards for military use. The case is opened by removing the crystal and splitting the two-piece stem, and inside is a 17 jewel, manually wound calibre made by A.
It has a higher beat rate, 28, bph as opposed to 21, bph, and also has a micro-adjustment mechanism mounted on the balance cock for more accurate regulation. Here is a picture of a cal. In the picture above, the stem is pushed all the way in — in the winding position — and so the stem presses on hacking lever, it pivots around the fixed axis just above the castle wheel and the lower arm of the lever releases the balance allowing it to rotate freely.
The watch arrived in decent condition and needed no more than a movement service, a crystal polish and an ultrasonic clean for the case, so here it is all back in one piece. So, who made these watches? With no markings on the dial, movement or inside the case, the jury is still out. It is thought that around were made, all of which were issued in This is around the time that the contract with Hamilton ended, and the new contract with CWC began, so could it be that this watch was a potential replacement for the Hamilton W10?
Was an order for pieces placed as a trial before the contract was finally awarded to CWC?
Bulova Pocket Watch Serial Number Lookup
Over the years, I have handled a boatload of Victorinox Swiss Army watches. I am an avid collector who buys, blogs about and resells this brand. The best way to get to know them is to own them for a while, and that is what I do. I was several years into collecting this Swiss Army when one of my readers showed me the date his watch was manufactured. This excited me because the method that I had used previously was more convoluted and probably less accurate.
The serial number shown here is from a Victorinox Swiss Army watch from
The following tables will help you date your vintage Bulova watch. Watches dated post have a 2 alpha-numeric date code on the outside backcase, whilst watches dated before usually contain a date code symbol on the inside movement (see below for examples).
In the past 5 years the number of tools to help us learn about these awesome watches has jumped from a single page Caliber-Date table to at least 3 new, significant dating tools. It’s important to understand the difference between the dates that these tools provide. You want to match the date with the correct use of that date. Here are the 3 different dates that can be found on a Gruen watch. Style Number Date – This page you are now reading, and the online dating tools found here, all tell you the Style Number Date.
This date is an approximation of when the model of watch first went into production.
Vintage Bulova Watches
We see that some older chronographs have separate serial numbers for the cases and movements; that some chronographs Caliber 12 models, for example have serial numbers on the cases, but not the movements; we are told that the serial numbers on various models were used by the case-makers, but not by Heuer, so that Heuer maintained no records tying the case serial numbers to production dates, models, etc.
All this leads us to the oft-repeated conclusion that serial numbers on Heuer chronographs are not useful for the purpose of dating a particular watch or for confirming authenticity in the sense of the case and movement having been together, since they left the factory. Heuer’s serial number situation becomes all the more frustrating for those who collect vintage Heuers, when we see the lovely Rolexes and Omegas with the dates inside the case-backs and tables of serial numbers, including the years of production ; model numbers are also marked on the cases.
But let’s get back to the Heuers: Even though we have authentic Heuer chronographs with no meaningful serial numbers, and cases and movements with no reference numbers at all, I believe that we can derive some worthwhile information from the serial numbers on the movements of certain Heuer chronographs, specifically those from the ‘s and ‘s.
Bulova Serial numbers indicating production dates Dating your Accutron is really quite a simple procedure. 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.
Those symbols, and the year s to which they correspond, are shown below. The decade must be determined by the style of the case, dial, and hands. For example, a s style watch with an arrow symbol on the movement dates the movement to Movements dating prior to approx. Thus, the presence or absence of a movement serial number, in conjunction with the date symbol on the movement, also helps narrow down the date. Occassionally, a movement will not have a date code, and movement codes are not seen prior to In such cases, other factors and information must be used to determine the date.
Hamilton Pocket Watch Serial Numbers
This is because there are no model numbers stamped on them. Using this information, you can compare your watch to the models that were made during that time period to identify the model. Take your watch off and flip it over to look at the smooth metal back of the case. You may see several different markings engraved there, all of which have different meanings.
Jan 25, · To find the serial number on the case of your Bulova watch, simply flip it over and look at the flat back of the case. If there is a serial number, it should be engraved here. 59%().
A Hamilton US military “general purpose” watch from In keeping with similar watches of this type, the dial bears the “H3” mark which I think signifies the use of Tritium in the luminescent compound and the Radiation tri-foil symbol. The back of the watch bears the relevant military specification, part number and date information, together with the instruction that it should be disposed of as “radiation waste”. This watch has an interesting life story! As I understand it, it was procured, along with many other watches, by the British MoD in the ‘s and was evaluated at Herstmonceux Castle at that time owned by the Admiralty for potential military use.
In the 70’s, the watches used in the evaluation were sold and became part of a private collection. Ownership was then transferred to the author of a well-known book on military timepieces who, in , sold the watch on to another collector. Later, the watch briefly appeared on eBay, but the buyer returned it to the seller as he thought it was too small for him, thus enabling me to acquire it instead: HF stands for “High Frequency”.