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Seiko inside your divecomputer?

Discussion in 'Computers, Gauges, Watches and Analyzers' started by sierrakilo, May 14, 2020.

  1. JMBL

    JMBL Solo Diver

    # of Dives: 1,000 - 2,499
    Location: France
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    The original Nitek Mon Nitek fin 2009.JPG was already made by Seiko. So were the Nitek Titanium, Nitek 3 and Nitek He. Those predates the Duo and Trio. Then there was the Nitek X, which was a failure, and the Nitek Q. I've absolutely no idea who designed those 2. I dive on a regular basis with the Q as a backup to my Shearwater Petrel, nothing to compalin about.
     
  2. abnfrog

    abnfrog Tech Instructor

    # of Dives: 2,500 - 4,999
    Location: great white north
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    what about the nitek he ?
     
  3. JMBL

    JMBL Solo Diver

    # of Dives: 1,000 - 2,499
    Location: France
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    As I stated in my latest post, Nitek He, was designed by Seiko.
     
  4. jale

    jale Barracuda

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    Remind me it was my first He computer and at the time, in the last century if I remember correctly, it was THE computer:)
    Any idea about Dive Rite computers' time line? Is the list below correct?
    1.Nitek
    2.Nitek 3
    3.Nitek He
    4.Nitek Duo
    5.Nitek Trio
    4.Nitek X
    5.Nitek Q
     
    АлександрД likes this.
  5. JMBL

    JMBL Solo Diver

    # of Dives: 1,000 - 2,499
    Location: France
    601
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    To the best of my knowledge, your time line is correct. There were several version of the Nitek, to add to this list, but I've almost no info on them.
     
  6. jale

    jale Barracuda

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    You make my day. My memory is not that bad :) :)
    Merci :)
     
  7. JMBL

    JMBL Solo Diver

    # of Dives: 1,000 - 2,499
    Location: France
    601
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    Pas de quoi ! :wink: (You're welcome)
     
  8. scubadada

    scubadada Diver Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Philadelphia and Boynton Beach
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    I have a Nitek Duo that I bought in 2008 and a Nitek Q that I bought in 2016. The Duo was inexpensive as the Trio was being introduced.

    The Nitek Duo is said to run a Buhlmann variant. I've always been a bit confused by the 9 compartment model. So is this the Seiko algorithm, written by Randy Bohrer?
    upload_2020-5-26_9-3-29.png
    p5, Duo owners manual

    At the time I bought the Duo, I was diving an Oceanic Pro Plus 2 primary (DSAT), backed up with a Cochran EMC-14. I bought the Duo because the Cochran was so unwieldy to use. Unfortunately, the Duo was so conservative that it was not useful to me as a backup. I had no information on the algorithm when I bought it. Turns out it is a bit more conservative than PZ+. I still have the Duo and it still works, but it has not seen any use for many years, not even as a loaner
    .
    upload_2020-5-26_9-13-21.png

    The Duo was quite popular at the time, introduced around 2004, and there were many clones, branded by other companies, Zeagle N2ition, Tusa IQ-700, Cressi Archimedes, Apex Quantum, perhaps others.

    Of course, the Nitek Q runs Buhlmann ZH-L16C with GF. I used it for 3 years while learning Buhlmann before I switched to a Teric. The Q was obtained for only $400 from DGX, maybe a year before it was discontinued. It still gets a fair amount of use as a loaner.

    See my previous post regarding the algorithm developed for tracking oxygen exposure Seiko inside your divecomputer? I think this might be an ongoing contribution from the Seiko-Dive Rite collaboration.

    Edit: Though I have searched this topic many times, somehow, I missed this very interesting post from @tbone1004 Need help choosing a new computer, read this It doesn't necessarily address the short NDLs of the Duo, but it does contain a lot of very interesting background regarding the Seiko algorithm :)
     
  9. JMBL

    JMBL Solo Diver

    # of Dives: 1,000 - 2,499
    Location: France
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    Nice info there again. I must find some time to read it all, thank you.
     
  10. Rygar

    Rygar Nassau Grouper

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    Dive Rite Nitrox NiTek1 was created by Benemec not by Seiko
     

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