Info on Longines 13ZN
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  1. #1
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    Info on Longines 13ZN

    I have also posted this in the Longines forum, but thought this might actually be my best source of info.

    I, like many of you, am afflicted with a type of disease affecting my lust, infatuation, interest, and common senses. My watch interests run the gammot. New, old, inexpensive, VERY expensive....If I am interested and I have the funds at my disposal, I make a spot in my collection for it. Unfortunately, this limits my ability to be knowledgeable about each watch I happen to like and see for sale.

    The mystery that brings me to all of you Longines experts is this vintage cal. 13zn.
    (sorry about picture quality)



    Front end looks good to me. True age to a metal dial. Hands and markings appear correct.
    It came to me missing the minute hand. Which I would like to source, but do not know where to begin.

    Lets see how she looks from the back.





    The column wheel Longines Cal. 13zn. Apparently a highly regarded and sought after movement. Please understand, all I know about this watch I have learned in the 24hrs since purchase.

    From what I understand, the 5,43x,xxx serial number would date this watch to 1936. This appears to be the year Longines patented this movement, the first ever flyback chronograph.

    The case is staybrite, approx 37.5mm across, 18mm lugs and the serial number inside the press on back matches the movement serial number.

    Does anyone know what the earliest 13zn serial number is?

    Any and all input on this watch/caliber is greatly appreciated. Thanks!
    georges zaslavsky likes this.

  2. #2
    Member HOROLOGIST007's Avatar
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    Re: Info on Longines 13ZN

    Hi
    Longines have all their hand written records going back to 1900.
    If you write to Longines they are most pleased to answer any/all questions.
    They also have an excellent book on all their calibers, which again if you ask they will send you a copy of that page.

    Regards
    NEVER ARGUE WITH AN IDIOT. FIRST THEY WILL DRAG YOU DOWN TO THEIR LEVEL. THEN, THEY WILL BEAT YOU WITH EXPERIENCE.

    "Failure is not an option" - Gene Kranz
    "Owning a vintage watch is great, understanding where it sits in Horology is magnificent"
    and
    "By Teaching Others, We Teach Ourselves"
    Adam

  3. #3
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    Re: Info on Longines 13ZN

    Thank you HOROLOGIST007. Here is the information I received from Longines:




    Thank you for your email and interest in Longines watches.

    Following your request, I have the pleasure to give you here below the information I found in our records :

    The serial number 5’43x’xxx identifies a stainless steel wristwatch, fitted with the Longines manufacture caliber 13ZN that was first produced in 1936.

    It was invoiced to Messrs.’ Jewellers, who were for many years our agent for South Africa, on September 9th, 1937.

    Hoping this information is convenient to you, I remain at your entire disposal for any additional information you may require.

    Best regards,



    Jennifer Bochud
    Museum Curator


    They were really fast with the reply. Impressive service. I asked if there was any other information about the caliber or information on the first 13ZN serial number range as this watch's serial is the oldest one I have seen.

    I'll post the information if/when it is made available to me.

    Any other comments/questions will be greatly appreciated.

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  5. #4
    Member HOROLOGIST007's Avatar
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    Re: Info on Longines 13ZN

    Yes Longines are the best. Jennifer is fantastic.
    Regards
    a
    NEVER ARGUE WITH AN IDIOT. FIRST THEY WILL DRAG YOU DOWN TO THEIR LEVEL. THEN, THEY WILL BEAT YOU WITH EXPERIENCE.

    "Failure is not an option" - Gene Kranz
    "Owning a vintage watch is great, understanding where it sits in Horology is magnificent"
    and
    "By Teaching Others, We Teach Ourselves"
    Adam

  6. #5
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    Re: Info on Longines 13ZN

    As a second response from Jennifer, who is fantastic, she states does not have the exact date that the first 13ZN was produced, but that it was in 1936. The same year as my watch.

    She also included the scan on the 13ZN caliber from their book. Great information here:

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  7. #6
    Member gatorcpa's Avatar
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    Re: Info on Longines 13ZN

    Longines researchers are the best in the business. Amazing information. Thanks for sharing!

    Omega-Bienne should take some lessons,
    gatorcpa

  8. #7
    Member georges zaslavsky's Avatar
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    Re: Info on Longines 13ZN

    congrats on amazing quality chronograph
    Omega the sign of Excellence since 1848. Jaeger Le Coultre Horlogerie de Luxe depuis 1833
    22 times Olympic games timekeeper, Nasa watch supplier and holder of several world records of precision, Omega has the world's trust
    Omega and Rolex for ever
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