![]() These exercises shouldn’t be called tests because they’re designed to be failed. For example, there are internet dealers who are shy of stating this fact and whose pictures are cropped so as not to disclose possible case screw marks.ĭueber Watch Case Serial Numbers vs.Suspected drunk drivers in California typically take field sobriety tests before getting arrested. Many times this fact wasn’t known to the person reporting the combination. Not the least of which is that the movements aren’t really the first occupants of the case. There are many possible reasons for this. Finally, there are a number of cases whose serial number seems inconsistent with dates of their movements.These may be what used to be called an “Original Recase.” This refers to a case purchased new for the movement 15 or 20 years after the original movement/case purchase due to the first case having worn out. A number of cases bear very much higher serial numbers than would seem warranted by the movement serial number, yet appear to not have housed a different movement.In many instances, these just do not apply to dating the case. Cases, especially Silverine and silver, appear to not always carry the full serial number.date data, these are only estimates which may be off by a year or so, or even three or more years. It should be kept in mind that, with the exception of most Hamilton and some Waltham serial number vs. Shugart, Tinderbox Press, Mount Pleasant, SC, 2012. date data were obtained from the Complete Price Guide to Watches, No 32, R. In a few instances, movement serial number vs. date data were obtained from the sources listed in the references sections of the Encyclopedia articles contained in the following lists: These are included because they shouldn’t affect the likely date. In a few instances of the case serial number ending in two or three zeros, these last two or three digits weren’t legible in pictures, although the figures could be seen.Cases showing evidence of another movement having occupied the case prior to the current movement were also not included.This marking is believed to indicate a case furnished in exchange of one which did not live up to the warranted number of years before wearing through to the underlying brass, of otherwise wearing out ahead of time. A number of case examples bearing an “X” are not included.The case stampings were not always in high relief and the pictures from which the data was collected were not always the best. One type of error may have occurred were a digit appears to be missing from a case serial number whose movement serial number indicates a much later date.movements, which tend to appear in Dueber cases. The opposite of the above applies to Hampden Watch Co.This also applies to the 1920s watches, most of which were factory-cased. who packaged their movements into their own (non-Dueber) cases. Exceptions to this are those movement manufacturers such as the Ball Watch Co., the Burlington Watch Co., the E. Due to the manner in which the data was collected, little or no import should be given to the relative quantities of various case/movement manufacturer combinations.The examples are subject to errors of reporting or recording. Other reported examples are also included. The majority of the examples listed in the table were drawn from the data base of reported examples of railroad and other interesting watches created and maintained by Ed Ueberall and Kent Singer.Notes On The Examples Shown In The Table Below If there is anything significant to change, maybe a moderator can help, but I don't know if it will be necessary.ĭueber Watch Case Manufacturing Co. Well, it took awhile, but I've added the above data to what Ed and I had and came up with the following. It's also helpful if you can post all the markings that are inside of the case and that are on the movement, especially the movement serial number, in case they can't be seen in the picture(s). We may be able to identify the movement by its markings and the shape of the plates. Other pictures will help a little, but these are the most important. Clearness and sharpness is important as differences in makes, watch grades or case material markings can be subtle. It would be helpful if you could post pictures of the movement (the "works"), the paper and the markings stamped inside of the watch case (you can ignore any "hand-scratched" characters, they're watch repairers' marks), the clearer and sharper, the better. The point of this thread is to try to correlate watch movement dates to those cases that appear to us to be original to the movements. Perhaps your post (and this reply) should be moved (by the moderator) to start a new thread about your watch movement and watch case. Welcome to the NAWCC American Pocket Watch Message Board!
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