Accutron 214 Movement Date Stamps, Reference Marks and Pillar Plate Variations - Page 2
 
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Thread: Accutron 214 Movement Date Stamps, Reference Marks and Pillar Plate Variations

  1. #11
    WTF Veteran Spaceview M2's Avatar
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    Quote Originally Posted by Rob B View Post
    Looking through my pillar plates again, I see that none of the M1 plates has the Patent Number stamp on it.below. Also below is a pic of an 214H from M1. I was surprised to find they were doing them so early.
    The consensus is the patent numbers didn't start appearing on pillar plates till 1963. I am sure there are exceptions when a pillar plate sits around till it is united with a full movement and stamped for a later watch but generally Pre-M3 Pillar plates had no patent wording under the 214. And the M1 & M2 movement stampings are offset to the right instead of centered over the coils. That looks to have started in M3.

    I have (2) M1s. Neither have Patent numbers.
    m1.jpg

    I have one M2 that doesn't have a patent number.
    m2.jpg

    I have one M3 Hacked Railroad that does have a patent number. Not a clear pic but it is a M3.
    m3.jpg

  2. #12
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    I'm thinking that if this group can compile the list of markings on 214 movements into one post, it should become a reference 'sticky'.
    CometHunter and Spaceview M2 like this.

  3. #13
    WTF Veteran Rob B's Avatar


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    Quote Originally Posted by mikeyt_53 View Post
    I'm thinking that if this group can compile the list of markings on 214 movements into one post, it should become a reference 'sticky'.
    Thanks everyone for adding your info to this post. Perhaps JackDaniels83 might like to compile everything so far, as he has done such a good job of making that spreadsheet layout :-) .
    Spaceview M2 likes this.

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    I will compile the rest of the answers to my excel sheet and add a screenshot again.
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    Regards, Daniel

  5. #15
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    Last edited by JackDaniels83; 05-23-2017 at 12:05 PM.
    Regards, Daniel

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    WTF Veteran Time2Fish's Avatar
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    You are amazing JackDaniels83. I am totally impressed.
    Last edited by Time2Fish; 05-23-2017 at 09:16 PM.

  7. #17
    WTF Veteran Rob B's Avatar


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    Absolutely superb thanks JackDaniels83. I appreciate your work, and no doubt so do we all.

    Regards, Rob

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    It's only a matter of a view minutes to make a diagram in excel. Anyway, thanks for your posts.
    Regards, Daniel

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    Interesting that M7 seems to be a peak time as far as numbers go, at least for this small sampling.

  10. #20
    WTF Veteran Chromspec's Avatar


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    Quote Originally Posted by Rob B View Post
    The recent thread by SAM2 where he mentioned a double-stamped pillar plate got me interested to look at some of mine, as I knew I had a couple of them too. So I grabbed my box of old pillar plates and started looking through them. Then I got interested to see what years I had, and ended up compiling this list. I thought it might be something we could all add to, so how about posting up your own stats, and we can add to my numbers here. Could be interesting to see what we can infer from all of this, once we get a good set of numbers. We are only looking at the year stamp, extra stamps, movement color, and Swiss or USA made. So here we go, this is what I have:

    Year USA Swiss

    M0 2 0
    M1 8 0
    M2 3 0
    M3 8 0
    M4 6 1
    M5 4 1
    M6 9 2
    M7 16 3
    M8 7 1
    M9 3 0
    N0 8 0
    N1 5 1
    N2 1 0
    N3 1 0
    N4 5 0
    N5 0 0
    N6 0 0
    N7 1 0
    Unstamped: 3 1
    ----------------
    Total 101 movements (including 15 complete watches)

    The most common movements I have are the year M7, both in American and Swiss made. The years N5 and N6 have no entries, but that doesn't mean none were made, just that I don't have any. I was surprised to see that the earliest Swiss 214 was an M4, I hadn't thought they started so early. Also, I was very surprised to see the earliest 214H being an M1, I didn't think they made them until much later.

    And some other info from the list above:

    Double Stamped: 7 (M1/M3, M3/M9, M4/M5, M4/M6, M4/M6, M6/M6, M6/N0) The 6 year spread on the M3/M9 movement and the 5 year spread on the M6/N0 movement was unexpected as I had the idea the difference was only a couple of years max.

    Earliest American: M0
    Latest American: N7
    Earliest Swiss: M4
    Latest Swiss: N1
    Earliest Gold Plated: M8 (USA)
    Latest Nickel Plated: N0 (USA)
    Earliest 214H: M1 (USA)

    There are many pillar plates that are stamped with figures in addition to the date code. As yet, no one seems to know what they mean, though it's probably fair to assume it is something to do with grading or QC. So far, I see only American movements with these extra stamps, no Swiss ones.

    In this group of movements, I see 10 different symbols, these are: "*", "X", "S", "." "+ in a circle", "Delta", "V", "4 dots in a square", "II" and "N". The most common is the "*", which occurs 14 times. Some movements are stamped with double marks or a combination of two different ones. The earliest movements in this list with extra stamps are three M1 plates that have an "*". The latest are some N4's with either "Delta" or (.)

    So, what do you see in your collection? Anything else unusual or in addition to what I see here?

    Regards, Rob
    The earliest Swiss 214 movement I have is an M2, so they do go back at least that far.

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