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.
Dating A Gruen Wristwatch from a Wadsworth Case Serial Number