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HF Admiral swept second hand

  1. river9 Feb 1, 2019

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    This is slow-mo video of cal 431.
    I think the second hand ticks 10 time/sec on this video. Please correct me if I am wrong. Thank you.
     
  2. No Mercy Feb 1, 2019

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    Actually I think it is 8 times/sec because this movement is running at 28800 bph.
     
  3. river9 Feb 2, 2019

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    I think cal 431 ticks at 36,000 bph.
     
  4. JimInOz Melbourne Australia Feb 2, 2019

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  5. No Mercy Feb 2, 2019

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    Yes cal. 431 is running at 36000 bph but this Longines is equipped with cal. 6952 which is running at 28800 bph.
     
  6. river9 Feb 2, 2019

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    Cal 431 was video-taped.
     
    9EAFD258-B192-463A-A77B-799A6B92E84A.jpeg
  7. superfly Feb 3, 2019

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    Over and over I counted 10 beats per second in that video. FWIW.
     
    river9 likes this.