Highly accurate mechanical watches from lesser-known brands?
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  1. #1
    Member Covenant's Avatar
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    Highly accurate mechanical watches from lesser-known brands?

    Seiko's spring drive naturally is the leader here with -1/+1 seconds per day (although it can be debated they aren't purely mechanical). Rolex's post-2015 superlative chronometer standard of -2/+2 is next highest, followed by the Patek Philippe Seal for -3/+2 for movements larger than 20mm, and then METAS-certified Omega Master Chronometers which I've been told are -1/+5 (but can't actually find that published anywhere).

    Are there any other brands with highly accurate watches? I know any top-grade or higher ETA could potentially be regulated to be very accurate, but I'm interested in warranted, published accuracy specifications.
    Casual: Seiko Brightz SAGM001 titanium perpetual calendar with 8F32 high-frequency quartz movement
    Business: Credor 9661-5000 SS/14K gold bezel with twin quartz movement
    Dress: Antique rolled gold Waltham pocket watch with acid-etched movement

  2. #2
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    Re: Highly accurate mechanical watches from lesser-known brands?

    I certainly don't include a quartz regulated watch in this group, but that is up to the individual.

    METAS is 0/+5 and arguably is tighter than Rolex since it requires the same accuracy range even at 1/3 wind. BTW Patek tourbillons are -2/+1.


    All you want to know about METAS and more:

    http://www.metas.ch/dam/data/metas/D...1V0_EN_Ve2.pdf

    Also note the way the accuracy is tested is important. Are the movements tested cased and are they tested in static positions or dynamically have potentially significant impact on the numbers.
    Last edited by ilitig8; June 29th, 2016 at 05:24.
    ALS Blancpain Breguet Chopard GO Hamilton Hexa Hublot IWC JLC Omega Panerai Patek Rolex Tag Tudor Seiko Sinn UN Vacheron

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    Member madwolfa's Avatar
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    Re: Highly accurate mechanical watches from lesser-known brands?

    My Damasko DA36 has been super accurate so far... like +-1-2 sec in 24 hours. They regulate them really well it seems.

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    Re: Highly accurate mechanical watches from lesser-known brands?

    Fleurier Quality Foundation Seal (watch brands Bovet, Chopard and Parmigiani and the movement-maker Manufacture Vaucher): 0/+5 sec per day
    Richard Mille Certificate: -1/+1 sec per day

    Source:
    http://www.watchtime.com/wristwatch-industry-news/industry/who-tested-your-watch-a-guide-to-the-watch-industrys-quality-marks/
    Last edited by probep; June 29th, 2016 at 07:34.

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    Member yankeexpress's Avatar
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    Re: Highly accurate.....watches from lesser-known brands?



    Certina DS-2 Precidrive HAQ chrono





    Certina DS-2 Limited Edition Watch With High-End PreciDrive Movement | aBlogtoWatch

    So far, it is dead nuts accurate. Found it as a brand new, reduced price catch and release in the sales forum





    Last edited by yankeexpress; June 29th, 2016 at 07:35.
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    Member endotreated's Avatar
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    Re: Highly accurate.....watches from lesser-known brands?

    Finished regulating my Oris Carlos Coste Limited IV just 2 days ago. So far, it lost 1 second in past 48 hours.

    Click image for larger version. 

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    Moderator Emeritus Bradjhomes's Avatar
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    Re: Highly accurate.....watches from lesser-known brands?

    Quote Originally Posted by yankeexpress View Post


    Certina DS-2 Precidrive HAQ chrono





    Certina DS-2 Limited Edition Watch With High-End PreciDrive Movement | aBlogtoWatch

    So far, it is dead nuts accurate. Found it as a brand new, reduced price catch and release in the sales forum





    Plenty of HAQ out there, but the title asked for mechanical.
    Brad (@bradwatch)
    - appreciating fine affordable watches since 2011



  9. #8
    Member Covenant's Avatar
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    Re: Highly accurate.....watches from lesser-known brands?

    Quote Originally Posted by ilitig8 View Post
    METAS is 0/+5 and arguably is tighter than Rolex since it requires the same accuracy range even at 1/3 wind.
    Thank you for the clarification RE: METAS.

    Quote Originally Posted by madwolfa View Post
    My Damasko DA36 has been super accurate so far... like +-1-2 sec in 24 hours. They regulate them really well it seems.
    Unless Damasko are publishing +2 sec/day as their warranted specifications... this is not answering my question. I want to know which manufacturers warrant their watches to higher-than-COSC specs other than the usual suspects of Rolex, Omega, Patek and Seiko.

    Quote Originally Posted by probep View Post
    Fleurier Quality Foundation Seal (watch brands Bovet, Chopard and Parmigiani and the movement-maker Manufacture Vaucher): 0/+5 sec per day
    Richard Mille Certificate: -1/+1 sec per day

    Source:
    http://www.watchtime.com/wristwatch-industry-news/industry/who-tested-your-watch-a-guide-to-the-watch-industrys-quality-marks/
    Now that's interesting! I'll have to do more reading into Richard Mille and the Fleurier brands. Hopefully there's no caveats or catches, like "for uncased movements only" etc.

    Quote Originally Posted by yankeexpress View Post
    Those are quartz, I'm asking about mechanical.

    Quote Originally Posted by endotreated View Post
    Finished regulating my Oris Carlos Coste Limited IV just 2 days ago. So far, it lost 1 second in past 48 hours.
    Again, I know almost any movement can be regulated for pretty good accuracy, but I'm specifically interested in manufacturer-warranted specifications.
    Casual: Seiko Brightz SAGM001 titanium perpetual calendar with 8F32 high-frequency quartz movement
    Business: Credor 9661-5000 SS/14K gold bezel with twin quartz movement
    Dress: Antique rolled gold Waltham pocket watch with acid-etched movement

  10. #9
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    Re: Highly accurate.....watches from lesser-known brands?

    Quote Originally Posted by endotreated View Post
    Finished regulating my Oris Carlos Coste Limited IV just 2 days ago. So far, it lost 1 second in past 48 hours.

    Click image for larger version. 

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Views:	440 
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    It'd be better if you time it over the course of a month for a more accurate average.
    Tom
    Marathon, Omega, Rolex, Ruhla, Seiko

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    Re: Highly accurate.....watches from lesser-known brands?

    Quote Originally Posted by Covenant View Post

    Now that's interesting! I'll have to do more reading into Richard Mille and the Fleurier brands. Hopefully there's no caveats or catches, like "for uncased movements only" etc.
    The Fleurier certification is for cased movements. Whether the brands back the certification with their warranties, I do not know. Also, Chopard carries a pretty wide range of mechanicals and the Fleurier certification is only for their top end watches. Some of their other watches have COSC and others have none.

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