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chevron_left Vintage timepieces

Identifying caliber movement

  • forum 4 replies
  • last reply by Mr. Thomas Koenig 27 Jul 2026
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    mengels
    Apprentice 2 posts
    26 Jul 2026, 3:04 p.m. 26 Jul 2026, 3:04 p.m.
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    Hi all,

    Can anyone identify this movement? It's from a pocket watch from around 1929 - 1930.
    At first I thought it was a Cal. 53, which fits the era... But it also looks like a Cal. 57, although, as I understand, it would be too old for a 1930 watch.
    Can anyone help?
    Many thanks!

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    Mr. Thomas Koenig
    Connoisseur 388 posts
    26 Jul 2026, 8:49 p.m. 26 Jul 2026, 8:49 p.m.
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    As your watch appears to be a Savonette/Hunter it is a Calibre 58. You are right: it looks in many aspects alike its Lepine/Open Face twin, the Cal. 57.

    Regards

    Th. Koenig

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    Monsan
    Apprentice 28 posts
    27 Jul 2026, 1 p.m. 27 Jul 2026, 1 p.m.
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    Right. Here is what the Fournitures say:

     

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    mengels
    Apprentice 2 posts
    27 Jul 2026, 7:39 p.m. 27 Jul 2026, 7:39 p.m.
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    Thanks for the information !!!
    On the movement, it's mentioned that its height is an H6.
    I noticed that that your post is mentioning an H5 height.
    Were these movements build in H5 and H6 configuration?

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    Mr. Thomas Koenig
    Connoisseur 388 posts
    27 Jul 2026, 9:17 p.m. 27 Jul 2026, 9:17 p.m.
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    As nearly all IWC pocket watch calibres Cal. 57/58 were built in the 20th century in H 6 (from about 1906 onwards) and in H 5 (in the mid to end 1920ies). As a rule H 6 Cal. 57/58 have three screwed chatons while H 5 have chaton pressed in.

    Regards

    Th. Koenig

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