When did Schatz start/stop stamping the date?

Ken M

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Feb 28, 2009
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I have a Schatz (49) with no date stamp on the back plate. Why is that?
 

KurtinSA

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First date stamps were Jun/Jul 1952. Before that no stamp. But there are some configuration clues that can help date it prior to 1952. Can you post a picture?

Kurt
 
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etmb61

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The lowest year I have on a dated Schatz 49 movement is 52. I have a number of undated 49s too.

Eric
 

Ken M

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Base cup: yes. Leveling feet: no. Interesting enough, what I assumed to be my newest Schatz, seems to be my oldest.

20210729_175527.jpg 20210729_175512.jpg
 

KurtinSA

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Maybe Eric has some insight on the style of the pendulum. I think there are basically two, one with the smooth center column and one with a ribbed/ringed column. Not sure if there was a cutoff for their use or if they were used either/or over time.

Kurt
 

Ken M

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I've been thinking backwards on the order of use, the ribbed shaft is on all my other newer Schatz, this is the first one I've gotten with this style pendulum.
 

KurtinSA

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We discussed the appearance of the smooth vs ribbed center column on the pendulum. I went through my collection of 28 Model 49s to see what the trends were. From my limited sample, it would appear that the ribbed column appeared near the end of 1952 or beginning of 1953. I do have a Schatz clock that was built into a marble case by John Bernbrock. It has no date (so pre 1952) but the pendulum has the ribbed column. I consider this an outlier as it was a custom clock.

Another thing I noticed is the wording in the circle logo. It appears that "Jahresuhrenfabrik" was used through May 1954 and then in June 1954 it was changed to "Aug. Schatz & Sohne".

Kurt
 
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