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Thread: PRS25 timekeeping

  1. #1
    Grand Master Velorum's Avatar
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    PRS25 timekeeping

    I am curious as to how owners of the PRS25 in its latest iteration are finding its timekeeping

    Mine is currently running at between +13s and +15s a day

    The position of the watch doesn't make much of a difference

    How are everyone else's doing?


  2. #2
    Grand Master
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    I don't have the new iteration so can't comment directly however mine from the very first batch ran at +20 spd its whole life. I was never happy with that performance and must admit I wouldn't be happy with the performance yours is returning either.

    My Dagaz which also uses the Miyota is returning 4spd.

  3. #3
    Grand Master Velorum's Avatar
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    My SARB017 with a 6R15 auto movement runs at -4s per day. I did have it regulated when the new crystal was fitted though.

  4. #4
    Craftsman
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    +16 SPD but it doesn't bother me because it's reset every Sunday so I know where I'm up to during the week. Besides, I'm always early for appointments so accuracy isn't critical.

  5. #5

  6. #6
    Apprentice
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    I haven't checked recently but when I first got mine, it was running at greater than +10 spd but when I started keeping it crown up at night as suggested by someone here, it settled down to a better +2 spd.





    That being said, I recently got a cheap jaxa wrench and have regulated a couple of my worse watches so if this one was not within 10 seconds per day, I'd have no qualms about opening it up and adjusting it.

    Screenshot_20190523-174727.jpgScreenshot_20190523-174733.jpg

  7. #7
    Grand Master magirus's Avatar
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    My original 40mm from a few years ago and my 36mm both gain several seconds per day, so I set them 30secs slow when winding to wear, and they run accurately enough for the time I wear them.

  8. #8
    Journeyman
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    Quote Originally Posted by Velorum View Post
    I am curious as to how owners of the PRS25 in its latest iteration are finding its timekeeping

    Mine is currently running at between +13s and +15s a day

    The position of the watch doesn't make much of a difference

    How are everyone else's doing?


    I'm about the same ... good enough for me ... it's no big deal to move the hands back a minute every few days.

    It's actually more accurate than my 2002 Datejust LOL

  9. #9
    Grand Master Velorum's Avatar
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    I had hoped for it to be sub +/- 10s

  10. #10
    Master
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    I can't complain: my PRS-25 36mm has gained two seconds in two days.

  11. #11
    Grand Master Velorum's Avatar
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    I am thinking about having mine looked at.

  12. #12
    Grand Master
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    Quote Originally Posted by Velorum View Post
    I had hoped for it to be sub +/- 10s
    Quote Originally Posted by Velorum View Post
    I am thinking about having mine looked at.
    I'd have expected sub 10 spd and would be disappointed if not. I don't think you'll settle with it unless you get it fettled.

  13. #13
    Craftsman Stuart's Avatar
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    Not good enough.
    Will fiddle with the innards myself I think. Done it before on this movement and itís not difficult.

  14. #14
    Journeyman TF23's Avatar
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    I've been wearing my 36mm Everest daily since December and over most of that time it has gained maybe 6-7 seconds a day on a consistent basis. Very recently it seems to have changed a little for some reason and now seems to be running around 3-4 seconds a day fast.

    I'm not using any positional adjustments to achieve these results (in fact it stays on my wrist overnight). Obviously I'm happy with the timekeeping.

  15. #15
    Master sean's Avatar
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    It's a standard movement that can be regulated for better performance than that, I expect. I'd be interested to know how much better it can get though.

  16. #16
    Grand Master Velorum's Avatar
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    I am holding off having mine looked at as I may buy one of the new ones and then sell it.

  17. #17
    Craftsman Stuart's Avatar
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    Miyota power reserve

    I wind my Everest 36mm (at least 20 winds) and wear it all day every day. After two or three days it stops overnight. I wind and reset it.
    When I wind it, it doesnít start until its been wound 15+ turns. Itís almost as though the movement is sticky and needs a good shove to start.
    Iíve had this movement before and several ETAs and never had this behaviour.
    Any comments or insights please?

  18. #18
    Journeyman TF23's Avatar
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    As you appreciate, if you're wearing it all day every day then you shouldn't need to wind it manually at all.

    I don't think I've ever wound mine, I just gave it a shake on day one and started wearing it.

    It sounds to me that you've simply been very unlucky and got a wrong'un and should speak to Eddie about it.
    Last edited by TF23; 6th June 2019 at 21:18.

  19. #19
    Just got a 40mm PRS25 today. Looks like around +5spd here.

  20. #20
    Journeyman
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    My 36mm has consistently run at +10 spd, which I am quite happy with. Still wearing it on the original bracelet as well. This and my 29A are my two best value and also among my most enjoyed watches.

  21. #21
    Grand Master Velorum's Avatar
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    Its running at between +20s and +24s per day at the moment - it definitely needs looking at.

  22. #22
    I've noticed that if you leave the watch on its side overnight, crown up, it runs much slower which is pulling timekeeping back for me. If you're running + each day, you'll claw back around 2s a night this way (on mine).


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