24 Hour Chronographs
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  1. #1
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    Picture 24 Hour Chronographs

    Since I'm totally hooked on 24 hour watches I've become somewhat obsessed with finding 24 hour chronographs.
    In my limited reading it seems a lot of the chronographs that tout having a 24 hour Hand (at least when automatic) use an ETA7754 or derivative (with 250/200/120/25 sized hands), yet most of them still keep their normal 12 hour hands in addition to the 24 Hour (GMT) Hand. I'm looking for Chronographs that would be 24 hour exclusively (say like the Clycine Chrono 08 Purist) - It seems I can find pictures of old Hamiltons (with a Lemania 1877 movement) and Breitling seems one of the few brands that seems to at least still make one model (the Navitimer Cosmonaute), but is that IT for available selection?

    If so - assuming one could find a matching 250/120 hole sized 24hour/minute hand set (google is failing me...), how hard would it be for a good watchmaker to convert any of the other plethora of 7754 based chrono's to a 24 hour 'purist' version? e.g. I actually kind of like the Momo Design MD100BK-02BKBK model Chronograph if only it was a purist.

    Please feel free to add your pictures of 24 hour chronographs to this list !


    Glycine Chrono 08 Purist
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    Hamilton Khaki 24

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    Breitling Navitimer Cosmonaute
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    Breitling Super Avenger Military
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  2. #2
    Member ned-ludd's Avatar
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    Re: 24 Hour Chronographs

    Herewith my two Sinn 903s. I believe they have Lemania 1877 movements in them.
    Name:  sinn903stgl24.jpg
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    (I'd be happy for anyone to give me more information about these - movement, date of manufacture, etc. - as such information is thin on the ground.)
    Last edited by ned-ludd; June 22nd, 2017 at 04:03.
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  3. #3
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    Re: 24 Hour Chronographs

    Airman SST chrono, purist version. Really nice looking chronograph.

  4. #4
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    Re: 24 Hour Chronographs

    Quote Originally Posted by traczu View Post
    Airman SST chrono, purist version. Really nice looking chronograph.
    Love the yelp blue combo


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  5. #5
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    Re: 24 Hour Chronographs

    Yeah, quite a looker. Unfortunately had to return this Glycine, as she stopped working after two weeks.

  6. #6
    Member Krogerfoot's Avatar
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    Re: 24 Hour Chronographs

    Very fond of this Gallet 24-hour chronograph. I never knew a thing about it until hearing from more knowledgeable people on this forum.
    Attached Images Attached Images


  7. #7
    aai
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    Re: 24 Hour Chronographs

    all time favorite

    Name:  universal 24 h.jpg
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  8. #8
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    Re: 24 Hour Chronographs

    What is the deal with the dual second hands? Lap time? Looks interesting!

  9. #9
    Member ned-ludd's Avatar
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    Re: 24 Hour Chronographs

    Here are some more 24-hour chronographs I've found while prowling the web.

    I want this white-face Gallet so badly it hurts.



    Not so much this black-face one.



    I find these Aero-Compax not quite as appealing but I'd be very glad to own the white-face 12-up one.



    (Apologies for the random image sizes; I couldn't seem to upload them as separate attachments. Still new here.)
    Last edited by ned-ludd; July 10th, 2017 at 13:50. Reason: Lost the image attachments.
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  10. #10
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    Re: 24 Hour Chronographs

    Those aero-compax are amazing

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