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  • IWC Cal. 89 - difference between case and movement numbers
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chevron_left Vintage timepieces

IWC Cal. 89 - difference between case and movement numbers

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  • last reply by nihilx 10 Oct 2015
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    Mr. Costin Teodor Streba
    Apprentice 1 post
    10 Oct 2015, 10:09 a.m. 10 Oct 2015, 10:09 a.m.
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    Hi,

    I have acquired a cal. 89 IWC a while ago and have some questions regarding its legitimacy... There is a large difference between case and serial numbers, which bothers me somewhat. Here is the data:

    Case no 1106128 (1940/1944-1950 - rather old for such a new movement?)
    Movement No 1370718 (1956, correct for cal. 89)

    Have you ever encountered this situation before?

    My second concern is regarding the correctness of each element of the case. I am attaching a few pictures to illustrate my main concerns:

    • is the dial re-written in your opinion?
    • is the glass original to the case?
    • is it OK for the case to be only plated (corrosion marks are present)?
    • is the crown original to the case (assuming the case is OK, even if not original to this particular movement)?

    Thank you in advance for your help, I welcome all input and information!

    [s25.postimg.org/abq798kqn/2015_06_25_13_12_08.jpg](postimg.org/image/m0u6x7bp7/full/)

    [s25.postimg.org/fof1nd8n3/2015_06_25_13_15_38.jpg](postimg.org/image/fbnnh6qd7/full/)

    [s25.postimg.org/dsnnyguf3/2015_08_28_08_41_40.jpg](postimg.org/image/bbbwr7aij/full/)

    [s25.postimg.org/7o0qyvrpb/2015_06_25_14_01_31.jpg](postimg.org/image/tn75m38jf/full/)

    [s25.postimg.org/ev2fur2m7/2015_06_25_14_01_42.jpg](postimg.org/image/gzmsvu48r/full/)

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