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 Post subject: Pair of Stanfords. Model 750-Bs. 14kgf Keystone cases.
PostPosted: Sun Jan 01, 2017 2:55 pm 
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Joined: Mon Feb 13, 2012 6:56 pm
Posts: 977
Location: Orlando, FL
Ever since I ran across this ad from June 1947 I’ve been looking for a Waltham Stanford.

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I just didn’t know they were made in both white and yellow until these two showed up on ebay practically on top of each other.

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There is some brassing on both and the dial on the gold version is rough enough to need a redial but it may have an its original band still on it by way of compensation.

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Now we come to the most challenging but fun feature of Waltham collecting. Trying to date a movement using the mess they made of their serial number system post war. All the lookup sites expect an eight digit number. The movement in the yellow Stanford is numbered C 1?124. So how do you figure out the year it was made?

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It helps to know that Waltham started using a letter code around this time to stand for the first 3 numerals in the serial number when stamping it into the bridge. So the serial number 33210001 would be stamped as M 10001. Now comes the next problem. As far as I have been able to determine C was not used as a prefix in this way. In the early 40’s Waltham set up a separate number system for their round 670 model movements using the C and D prefixes but that doesn't apply to this 750 B. The main source of production information is Serial Numbers With Description published by the factory. I have a copy of the 1954 edition which shows the letters K through T substituting for the digits 330 through 338 in runs from 1948-1953. Both R and S were used in place of 337. I have seen enough examples of the prefixes H, I and J on movements to feel confident that this system was in use for serial numbers 32700001-32999999. Would it be possible to push the system all the way back to the prefix C of my movement? The opening run of the model 750 B in March 1946 has serial numbers between 32319001 and 32329000. So if you make the stretch that C might stand for 323 and the rest of this number might be 19124, it could have been made early in the first run of the 750 B. How’s that for reading between the lines? I told you this was fun. The other movement is much easier. H 67823 would translate to 32767823 and put it in a run from June 1947.

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So twins born 16 months apart? As good a guess as any in the world of Waltham. Joel


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