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  • Aquatimer 3536: What is with the lump at 12?
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chevron_left Vintage timepieces

Aquatimer 3536: What is with the lump at 12?

  • forum 4 replies
  • last reply by DirkJanssen 12 Jun 2012
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    Larry Seiden
    Master 1243 posts
    11 Jun 2012, 8:24 p.m. 11 Jun 2012, 8:24 p.m.
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    I remember a discussion from a long time ago that I cannot find in the archives concerning whether the Aquatimer 3536 (outer rotating bezel) should have lume on the double markers at the 12 or just the dot.

    I've seen it both ways.

    Lume on only the dot

    img.photobucket.com/albums/v199/Watchful/IWCs/aad6efbc.jpg

    and Mark Tannenbaum's great photo showing a fully lume dial.

    img.photobucket.com/albums/v199/Watchful/IWCs/267d816d.jpg

    Does anyone know which dial is correct? Or are both correct?

    Thanks,
    Larry

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    Larry Seiden
    Master 1243 posts
    11 Jun 2012, 8:26 p.m. 11 Jun 2012, 8:26 p.m.
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    Damn Auto Corrector!!! I meant LUME at 12?

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    Shing
    Master 2998 posts
    12 Jun 2012, 6:22 a.m. 12 Jun 2012, 6:22 a.m.
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    interesting... so two (or is it three) different dials distinguishable only by the lume ?

    is the difference because of older ref 3536 with Tritium dials, and newer ones with Super Luminova dials (or older ones that went for a re-dial?) ? these would be the discussions:
    www.iwc.com/forum/en/discussion/21067/
    www.iwc.com/forum/en/discussion/55662/

    Whichwatch also had a post earlier, contemplating whether to get the new dial: www.iwc.com/forum/en/discussion/25981/

    Not sure if this is the same issue...

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    Dirk Janssen
    Master 761 posts
    12 Jun 2012, 5:59 p.m. 12 Jun 2012, 5:59 p.m.
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    shing has written:

    ...

    Is the difference because of older ref 3536 with Tritium dials, and newer ones with Super Luminova dials (or older ones that went for a re-dial?)?

    ...

    I think you are right and the difference in the luminance of the 12 o'clock markers on the photos shown is due to older dials having a mixture of tritium and superluminova (tritium only for the 12 marker), with the tritium fading over time. One can tell the difference because the faded tritium turns yellow over time whereas the superluminova remains white.

    Personally, I prefer the all white superluminova only newer dials, but the not-glowing-in-the-dark-anymore tritium markers at 12 have their own charm, both are correct, the latter is older.

    D.

    Cheers, Dirk

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    Dirk Janssen
    Master 761 posts
    12 Jun 2012, 6:01 p.m. 12 Jun 2012, 6:01 p.m.
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    Forgot to add that you can tell from the markings at the bottom of the dial - the 'Swiss Made' is framed by a 'T' on either side on the older dials with tritium for the 12 o'clock markers.

    Dirk

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