Frequency Rates

Why do so many manufacturers describe vibrations per hour vs hz?

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Maybe they think it sounds more impressive- 28,800 vs. 4

Divide vph by 7200, if it makes you feel better...

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Tradition mostly. 

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MASP7GMT

Maybe they think it sounds more impressive- 28,800 vs. 4

Divide vph by 7200, if it makes you feel better...

Long division does not make me feel better 😬

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Because some companies use intermediate rates, e.g. Vostok @ 19800 vph (2.5Hz) and newer Omega/Longines @ 25200 vph (3.5Hz)...

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I'd be willing to bet that the average (non-enthusiast) mechanical watch owner doesn't know and couldn't care less about the beat rate of their watch.

Reminds me of this- 

https://youtu.be/2iuf09zRrBM

He wanted the battery checked...

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I’d prefer it in joules.

Calculators out, marketing gets paid by the number.

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28,600 bph makes no sense to anyone, and is impossible to remember. Case in point:

@MASP7GMT Maybe they think it sounds more impressive- 28,800 vs. 4

I have an intuitive sense of what 4 Hz, or 8 bps means. 28,600 bph, not so much.

@JBird7986 Because some companies use intermediate rates, e.g. Vostok @ 19800 vph (2.5Hz) and newer Omega/Longings @ 25200 vph (3.5Hz)...

There’s nothing wrong with 3.5. I think we all understand decimals. Or 7 bps, if you really hate fractions that much. And nobody needs that many digits of accuracy. It’s not like any watch runs at 28,650.

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wilfried

28,600 bph makes no sense to anyone, and is impossible to remember. Case in point:

@MASP7GMT Maybe they think it sounds more impressive- 28,800 vs. 4

I have an intuitive sense of what 4 Hz, or 8 bps means. 28,600 bph, not so much.

@JBird7986 Because some companies use intermediate rates, e.g. Vostok @ 19800 vph (2.5Hz) and newer Omega/Longings @ 25200 vph (3.5Hz)...

There’s nothing wrong with 3.5. I think we all understand decimals. Or 7 bps, if you really hate fractions that much. And nobody needs that many digits of accuracy. It’s not like any watch runs at 28,650.

Respectfully disagree -- 28800 vph makes perfect sense.  It simply means that the balance wheel moves in from one extreme to the other 28,800 times every hour.  It also probably helps folks to understand why after about 5 years the watch could probably use a service and relubrication (since that would amount to more than 1.26 billion vibrations of the balance wheel - think about that fact for a minute and try not to be awed).

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JBird7986

Respectfully disagree -- 28800 vph makes perfect sense.  It simply means that the balance wheel moves in from one extreme to the other 28,800 times every hour.  It also probably helps folks to understand why after about 5 years the watch could probably use a service and relubrication (since that would amount to more than 1.26 billion vibrations of the balance wheel - think about that fact for a minute and try not to be awed).

You just made my point again. The correct number is 28,600. You can’t remember that 28,600 bph means 4 Hz any better than I can. And you didn’t even seem to notice. Yes, it makes as much technical sense as any unit, but it doesn’t make sense to a normal human brain. Does it make any sense to talk about 63,360 inches? That’s a mile BTW, in case you didn’t know. The difference between 4 Hz and 5 Hz is perfectly transparent to me, 28,600 vs. 36,000 is not.

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People naturally think in logarthmic terms. That is my excuse for why I can't make any distinction of these five digit numbers that sticks in my head for over an hour. Any buffoon can conceptualize 2, 3, 3.5, 4 beats per second.

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wilfried

You just made my point again. The correct number is 28,600. You can’t remember that 28,600 bph means 4 Hz any better than I can. And you didn’t even seem to notice. Yes, it makes as much technical sense as any unit, but it doesn’t make sense to a normal human brain. Does it make any sense to talk about 63,360 inches? That’s a mile BTW, in case you didn’t know. The difference between 4 Hz and 5 Hz is perfectly transparent to me, 28,600 vs. 36,000 is not.

4hz is 28,800, not 28,600...

(60×60×2×4)

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MASP7GMT

4hz is 28,800, not 28,600...

(60×60×2×4)

I stand corrected. My confusion, so I’m making my own point. 21,600, 28,800, 36,000, vs. 3, 4, 5.

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I buy watches because I like the style,size ,and wear ability,I'm not that concerned about what's inside ,it's like my car I put petrol in it and it works,I don't know what's in petrol 

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Best answer so far is marketing, engine rev rates are giving in hours!

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MASP7GMT

4hz is 28,800, not 28,600...

(60×60×2×4)

Thank you.

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Same as 100meters vs 10Bar, 72 hour PR vs 3 Day PR, it all means the same, just a matter of what sounds better when the ADs are selling the watch.