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Thread: Need help with this bezel: how to read and use it ?

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  1. #11
    Member Francois Boucher's Avatar
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    Re: Need help with this bezel: how to read and use it ?

    Quote Originally Posted by jean-michel
    by the way MN 90 tables are not dated of the 70s but .... 1990 !
    MN 90 stands for Marine Nationale and 90 for 1990 the previous tables where the MN 74
    Jean-Michel,

    You are absolutely right about this. I did not have access to the MN74 Tables, so had to use the MN90, hoping they might not be all that different from the 1974 Tables. BTW, where can I find the MN74 Tables?

    In fact, the data on the bezel do not correspond either to the Buhlman Tables, which antedate MN73 & USN70.

    Thanks for checking!

    I have contaced Doxa asking for a copy of the users' Manual that might be in their archives. I will surely come back here with an answer to this mystery, if I can find it...
    Last edited by Francois Boucher; March 26th, 2006 at 14:36.
    François – Quebec City, QC

  2. #12
    Member bob5150's Avatar
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    Re: Need help with this bezel: how to read and use it ?

    They look like deco tables, however, ones I haven't seen before. But then again, there were many different deco tables used over the years.

  3. #13
    Member Francois Boucher's Avatar
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    I found the answer!

    ...with PeterG's help: read it here.
    François – Quebec City, QC

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  5. #14
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    Thumbs Up Thanks for all the digging Francois

    I figured it was some kind of deco table.

    I compared these to the DCIEM tables and they are not even close. So I looked at the straight US Navy Standard air decompression table. The max bottom times are more consistant with US tables. The Jenny has a more refined time scale then the US table. Seems like an enhanced US Navy table.

    I tried a scan of my table and to get legibilty its too damn huge to post .

    Thats one of the things that are so great about the forums- you can usually get an answer to some of the harder questions.

    Once again thanks to you and Peter G for solving this mystery.

    Chris

  6. #15
    Member Francois Boucher's Avatar
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    Re: Thanks for all the digging Francois

    Quote Originally Posted by chrise2469
    I figured it was some kind of deco table.

    I compared these to the DCIEM tables and they are not even close.
    They could never be, as the DCIEM are the most recent tables, from the late 90s.
    So I looked at the straight US Navy Standard air decompression table. The max bottom times are more consistant with US tables. The Jenny has a more refined time scale then the US table. Seems like an enhanced US Navy table.

    I tried a scan of my table and to get legibilty its too damn huge to post .
    The USN73, MN90 and Bühlman tables were all posted on this dive forum, if you want to look them up.
    Thats one of the things that are so great about the forums- you can usually get an answer to some of the harder questions.
    That's the fun of these forums: you learn something new every day, & there's always someone to help!
    Once again thanks to you and Peter G for solving this mystery.

    Chris
    It's a lot of fun!
    François – Quebec City, QC

  7. #16
    Member Luka's Avatar
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    Re: Need help with this bezel: how to read and use it ?



    Hi guys, thank you very much for digging so deep to clear this mistery. :thanks

    As I am nothing more than a desk diver, I couldn't have figured it out by myself. I understand how the bezel should work now but the tabels are dated.

    My Orange bezel looks great but I wonder how readable it is when diving with it.


    Anyway, I thought it was something of a gimmick on the watch and had no actual use. In such cases the watch won't stay for long with me but now there is a nice story behind it, it is going to stay.
    I picked it up for less than lunch money because the stem was broken.

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