Sinn 556A accuracy +8 seconds a day
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  1. #1
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    Sinn 556A accuracy +8 seconds a day

    Dear community,


    I recently purchased Sinn 556a (a gift for my father). I was testing it over last week and I see that it runs approx. 8 seconds / day fast. I was wondering if this is normal or I should be “concerned” ? I have received it on 14.06, have set the time and wound it manually. Since then, everyday I take it out of the box to wind it (was not worn, so it sits in same position all the time, dial up in the box). It is gaining about 8 seconds a day constantly. Yesterday time offset was 48 seconds (divided by 6 days = 8 secs/day). I have only one watch to compare to, my Steinhart Ocean 39 (Elaboré 2824-2), which runs 5 sec/days fast constantly over half a year. I was reading that Sinn uses Elaboré 2824-2 or even Top grade, so I was expecting it to perform at least at 5 secs/day. I still have time before father’s birthday in July, hence I wanted to hear your experience and see if I need to take it to watchmaker to, perhaps demagnetize, etc.. or this is normal and nothing to “worry” about J ?



    Thanks for sharing your opinion!

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  2. #2
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    Re: Sinn 556A accuracy +8 seconds a day

    Mine is 3 or 4 months old (second owner) and is about +4spd over the week I've had it and will slow down if left crown up. These do have the top grade ETA2824-2 and the specs for that are an accuracy of +/-4 sec/day up to +/- 15 sec/day per my research.

    Omega Seamaster Professional 2254.50
    Hamilton Jazzmaster Day/Date
    Damasko DA44
    Seiko SRPC39
    G-Shock GWM5610-1


  3. #3
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    Re: Sinn 556A accuracy +8 seconds a day

    Thank you Rice and Gravy! I was also expecting around 4-5 secs. Your's seem to run perfectly! 8 is not terrible, but i was a bit surprised when observed it, as I said, my Steinhart performs better at more than half of the Sinn price :) . Not that I am expecting COSC level and 1000$ is not a lot in a watch world, but was expecting a bit more still. Could it be that its magnetized? Or if it did, it would run much much more faster?

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  5. #4
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    Re: Sinn 556A accuracy +8 seconds a day

    In my experience sometimes brand new watches need a bit to settle in and seem to keep better time when worn regularly. In addition, usually magnetized watches run REALLY fast, not a few seconds, but regardless you'd think magnetization would not been an issue for this watch anyway given that it is anti-magnetic as per DIN 8309.

    Omega Seamaster Professional 2254.50
    Hamilton Jazzmaster Day/Date
    Damasko DA44
    Seiko SRPC39
    G-Shock GWM5610-1


  6. #5
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    Re: Sinn 556A accuracy +8 seconds a day

    Quote Originally Posted by Rice and Gravy View Post
    In my experience sometimes brand new watches need a bit to settle in and seem to keep better time when worn regularly. In addition, usually magnetized watches run REALLY fast, not a few seconds, but regardless you'd think magnetization would not been an issue for this watch anyway given that it is anti-magnetic as per DIN 8309.
    True :) Thanks!

  7. #6
    Member City74's Avatar
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    Re: Sinn 556A accuracy +8 seconds a day

    Within 10 seconds a day is fine. It might even get better over time. No worries
    My collection changes so often I got tired of redoing my signature

  8. #7
    Sinn Moderator gaopa's Avatar
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    Re: Sinn 556A accuracy +8 seconds a day

    I agree with the poster who suggested the watch will settle down a bit once worn regularly. If not, any good watchmaker can regulate the movement.

  9. #8
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    Re: Sinn 556A accuracy +8 seconds a day

    I’d be happy with a 556 that ran +8 SPD. As others have said it might improve as it beds in.
    MusicPDX likes this.

  10. #9
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    Quote Originally Posted by City74 View Post
    Within 10 seconds a day is fine. It might even get better over time. No worries
    Thanks! 👍

  11. #10
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    Quote Originally Posted by gaopa View Post
    I agree with the poster who suggested the watch will settle down a bit once worn regularly. If not, any good watchmaker can regulate the movement.
    Yes, also currently it's in the box, always sits in one position , hopefully once it's worn it will improve. I will post an update 1-1,5 month from now. It maybe useful / interesting for someone with similar question.

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