• Apprentice
    19 Dec 2025, 3:14 p.m.

    Dear all,

    A new member here, and a relative novice in things technical and historical IWC.

    I recently purchased this loose Stauffer/peerless/IWC mvt as a potential parts donor for a 1916 Stauffer/peerless cal 64 Borgel wristwatch that I have, just in case needed in the future, and as it was running I felt it was crazy not to purchase it at the price.

    Anyway, I put the serial number 396838 in the 'Date your IWC' app and it came up with a cal 63, lepine, 1907.

    I would assume from a ladies fob watch, it winds at 12, sub seconds at 6, that has had the gold case scrapped.  The balance and escapement cocks are of a very slightly different tone to the other bridges so could have been swapped.

    Obviously, the chances of sourcing a replacement case are extremely slight, which is a shame, really.

    What I am curious about is it has a slide set for setting the time, not a pin set.  I thought that this was a time setting mechanism belonging to hunter type cases, not open face cases which I understand was the typical case used to house the cal 63.  After initial googling around I have struggled to find another slide set cal 63, or am I missing something?

     

    Edit: I tried to upload a couple of images but got the "unknown error occurred", apologies for that I wil try and sort it out.

    I still seem to get the error message posting pics, even singly, the largest is only 1.6mb, they are jpg.  Any help with that would be appreciated.

    This is the only way I could find to get the images here, if you copy and paste the link it takes you to the image.  Apologies again for this hassle.

    https://i.postimg.cc/D0TNv0xH/iwc-cal-63-mvt.jpg

    https://postimg.cc/75jr2WzP