Technique 2 - Serial Numbers that begin with the number 5
See Figure 1 below for how to read a case's serial number that has a G or L prefix. If your case is a Wadsworth case, and you find a 5 instead of a Gx or Lx at the beginning of the serial number, then you may be able to use the Cooper tables. If both of these criteria are not met, then this technique will not work for you. Jack Wood's article that described how his technique for determining the date a Wadsworth case was made was published in the Sept/Oct 2012 NAWCCĪ Gruen Wristwatch from a Wadsworth Case Serial Number" toįor this particular dating technique, two criteria must be met.ġ - The case must be manufactured by WadsworthĢ - The case serial number must start with the letter G or letter L Technique 1 - Serial Numbers that begin with the letter G or L More about this can be found in the ID You Gruen! tutorial. You will want to look further into the past when searching for detailed data about your watch. Your Wadsworth Date will be later than the Introduction Date. 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. 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. For identification research, the critical date is the "Introduction Date", the date the watch model was first introduced to the public for sale. If you are attempting to identify your watch, that is, you are seeking the model name and other detailed information about it, then you are actually looking for a different date. Let's call this date, the date your Wadsworth case was made, the Wadsworth Date. If you want to know the exact age of your watch, then this date is what you are seeking. The Wadsworth case date is the date the watch's case was manufactured. While these tables appear simple, like all Gruen research work, considerable effort was expended by these individuals to create them.īefore presenting the tables and techniques, a word about case dating. These techniques involve looking up a portion of the Wadsworth case serial number in a table to determine the date a Gruen case was manufactured.
Both are top-notch Gruen historians and researchers. One was developed by Jack Wood, the other Barry Cooper. There are two different case dating methods for Gruen wristwatch cases that were manufactured by Wadsworth. Another wrench (spanner for you Brits) in the toolbox is always welcomed as Gruen collectors need all the help they can get. I'm grateful that I can share with you MORE tools for your Gruen toolbelt. They are very low-maintenance for added convenience.Dating A Gruen Wristwatch from a Wadsworth Case Serial Number With their classic design, quartz movement watches will be wonderful additions to your jewellery collection. These watches are designed with accurate movements and give off pleasant humming sounds, so you can be certain that they are operating correctly. Popular Movement Types for Concord Watches:Ĭommonly found in the late fifties and sixties, the tuning forks produce a quiet humming sound. They have lightweight builds, which make them especially comfortable to wear during any activity. Carbon fibre band wristwatches have a modern style, which gives them a beautiful, sleek feel. Featuring soft designs, they are pleasant to wear and won't distract you during your day. Silicone band wristwatches have a casual style, which is perfect for any activity. Concord Wristwatches Available Strap Materials for Concord Wristwatches: