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Zenith "El Primero"

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Uploaded by on Jul 2, 2010

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People & Blogs

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Standard YouTube License

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  • The heart of the El Primero beats at a rate of 36'000 vibrations per hour, meaning 864'000 a day or 315'360'000 beats per year one vibration corresponds to the position of the lever as it swings to and fro, making the alternating “tick” and “tock” sounds. As there are 3'600 seconds in an hour (60 seconds times 60 minutes), and since El Primero beats at a frequency of 36'000 vibrations per hour, the hands actually thus make 10 jumps per second, thereby marking off tenths of a second.

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