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  1. #1
    Member OmegaCosmicMan's Avatar
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    Re: MKII Accuracy Survey

    My Graywater appears to be running absolutely Dead On, during the wearing cycle I typically use; 6-8 hours per day.

    Inconceivable!

    It's beating my Omega X-33 if it holds up!

    thejollywatcher likes this.

  2. #2
    Member Chromejob's Avatar
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    Re: MKII Accuracy Survey

    Were you letting it wind down and stopping in the box, or just resting for 12 hrs or more without winding?

    // Tapatalk on Nexus 7 //
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    MK II Kingston "Bond"; Key West "Pussy Galore"; Nassau 3-6-9; Graywater GMT. O&W M4, M5. Orient EV09, ER1S (2010 STI Series I). Seikos: SKXA47K (2005), 7T32-6M59 (1991), H558-5009 (1985), 7A48-7000 (my precious! 1985), 7009-4040 (1980?), 6117-6410 (1974). Steinhart Ocean Black DLC MilSub mod. Tissot TXL Digital7.

  3. #3
    Member Chromejob's Avatar
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    MKII Accuracy Survey

    Well, after an inexplicable jump off my wrist into a bathtub next to me, I thought my Nassau would need regulation, maybe repair.

    Put it on the winder next to its big brother, synced them both to the USNO time widget at 1134 on 8-11. Here they are 72 hours later.




    As you can see, the Kingston is, after almost 3 years of off and on wear keeping reliable time, about +2/day. The Nassau is only about a second behind it per day. Will return it to daily wear shortly (taking a little vacation with Graywater #13).

    QED: the movements inside the Mk II divers are well protected, and remain really accurate (COSCish standard). Semper fidelis to Mk II.
    Last edited by Chromejob; August 14th, 2015 at 20:16. Reason: added pic, corrected values
    Hidden Content

    MK II Kingston "Bond"; Key West "Pussy Galore"; Nassau 3-6-9; Graywater GMT. O&W M4, M5. Orient EV09, ER1S (2010 STI Series I). Seikos: SKXA47K (2005), 7T32-6M59 (1991), H558-5009 (1985), 7A48-7000 (my precious! 1985), 7009-4040 (1980?), 6117-6410 (1974). Steinhart Ocean Black DLC MilSub mod. Tissot TXL Digital7.

  4. #4
    Member sennaster's Avatar
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    Re: MKII Accuracy Survey

    ^nice results

    My 369-Nassau has been such a remarkable timekeeper that i rarely remember the last time i set it.

    I am at +1s per day .... one freaking second. I wear it most days and set it in the drawer of my nightstand at night. On days i don't wear it, its in a winder.

  5. #5
    Member Chromejob's Avatar
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    Re: MKII Accuracy Survey

    Seven days after syncing to NIST , on the winder.

    JFingers and thejollywatcher like this.
    Hidden Content

    MK II Kingston "Bond"; Key West "Pussy Galore"; Nassau 3-6-9; Graywater GMT. O&W M4, M5. Orient EV09, ER1S (2010 STI Series I). Seikos: SKXA47K (2005), 7T32-6M59 (1991), H558-5009 (1985), 7A48-7000 (my precious! 1985), 7009-4040 (1980?), 6117-6410 (1974). Steinhart Ocean Black DLC MilSub mod. Tissot TXL Digital7.

  6. #6
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    Re: MKII Accuracy Survey

    Holy crap! The Kingston is showing a daily rate of +0.6s after 8 days...


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    Chromejob and thejollywatcher like this.

  7. #7
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    Re: MKII Accuracy Survey

    After getting my Nassau demagnetized, it's running +1.6 per day (over 7 days).


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  8. #8
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    Re: MKII Accuracy Survey

    Testing my 2 new watches for 10 days:

    Paradive: -0.1
    Sea Fighter: +0.1


    Sent from my iPhone using Tapatalk

  9. #9
    Member harrym71's Avatar
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    Re: MKII Accuracy Survey

    I set my watches by this app.
    Nassau was set last Thursday.

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    Aceldama likes this.
    Tissot PRC 100 | Stowa Flieger Automatic | MKII Nassau | Alpina Startimer Chrono Big Date | Seiko SRPA21 Prospex Turtle

  10. #10
    Member Yellowdrive's Avatar
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    Re: MKII Accuracy Survey

    I've been paying more attention recently to the accuracy of my Nassau and was a little worried about losing a full minute (sometimes more) over the course of a month. I haven't yet checked to see if it's a magnetic issue, though after perusing this thread it's the likely culprit.
    About a week ago, I started getting in the habit of manually winding my watch every morning in preparation for my next watch purchase (a manual-only piece) and noticed a dramatic improvement in the accuracy; +/- a couple seconds a day. Has anyone else worked in a few manual turns to their automatic movement? I've still got to do some more testing on this piece, but it's a huge relief to see such a dramatic difference.

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