72000 bph!

Thread: 72000 bph!

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  1. #1
    v76
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    Cool 72000 bph!

    I found this YouTube video of the Breguet Type XXII from Baselworld 2010 - the seconds hand sweep seems so smooth!

    http://www.youtube.com/watch?v=0Ii-KCpftK0

    I wonder if Chopard has plans to make watches with the same beat (10 Hz/72000 bph) frequency, since they were the first to reveal that kind of escapement in 2009 ...
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  2. #2
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    Re: 72000 bph!

    I wish it wasn't sped up.

  3. #3
    v76
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    Re: 72000 bph!

    It's not sped up, one revolution of the chronograph seconds hand is completed in 30 seconds, it takes 2 revolutions to count to a minute. Don't know why Breguet did that ...

    You'll notice that there's a pointer in the 0/30/60 window below "12", that indicates whether the chrono seconds is between 0-30 or 30-60 (and moves as the seconds advance as well).
    Last edited by v76; April 12th, 2010 at 04:51.
    Collection:
    A few of this and some of the other ...


    "I worked my way up from nothing to a state of extreme poverty" - Groucho Marx

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    Re: 72000 bph!

    Doh, I didn't pay attention to the small second hand.

    Now I can be sure that it's definitely very smooth!

  6. #5
    v76
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    Re: 72000 bph!

    I wonder if they're using dry lube like Zenith did for the El Primero (Molybdenum bi-sulfide base) or if they're using proprietary self-lubricating materials ... hmm, don't think conventional lubes can be used, especially around the balance wheel and hairspring assembly. Wonder if the recommended service interval is the same as for a regular 4 Hz watch, too ...
    Last edited by v76; April 12th, 2010 at 05:02.
    Collection:
    A few of this and some of the other ...


    "I worked my way up from nothing to a state of extreme poverty" - Groucho Marx

  7. #6
    Moderator Public Forum Eric L.'s Avatar
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    Re: 72000 bph!

    To be honest with a second hand that small, its hard to tell the difference between a regular beat 4hz vs the high beat 10hz. Now if it was a huge dial with a long second hand, then absolutely the smoother beat can be seen.
    Lots of dive watches.

  8. #7
    Omega Forum Moderator emmanuelgoldstein's Avatar
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    Re: 72000 bph!

    Doesn't really do anything for me. Not to impressed by the movement at all.
    “Education is the inculcation of the incomprehensible into the indifferent by the incompetent”

    -- John Maynard Keynes

  9. #8
    v76
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    Re: 72000 bph!

    Quote Originally Posted by Eric L. View Post
    To be honest with a second hand that small, its hard to tell the difference between a regular beat 4hz vs the high beat 10hz. Now if it was a huge dial with a long second hand, then absolutely the smoother beat can be seen.
    I agree, it's only when the chrono is running that you can see the smooth seconds sweep.
    Collection:
    A few of this and some of the other ...


    "I worked my way up from nothing to a state of extreme poverty" - Groucho Marx

  10. #9
    Member lysanderxiii's Avatar
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    Re: 72000 bph!

    Anything over 5 Hz is kind of a waste of time, human reaction time will introduce far greater errors in timing an event.

    A quarter of a second is really all the better a human can time to.

    Also, due to persistance of vision (see the Rolex v Omega sweep thread) anything faster that 6 Hz will appear to the human eye just as smooth.
    Last edited by lysanderxiii; April 12th, 2010 at 19:49.
    familiaritas parit contemptum; raritate admiratione wins.- Lucius Apuleius
    est necessry, accurate ad secundo? - Lysander magna
    iustum est horologium - Obscurus Genius

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