Did you know that our watches...

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…are manufactured with a precision of up to 1/1000 mm ?

Some parts in our watches are produced with the tolerance of a 1/1000mm.
This is 50 time less then the thickness of a human hair.

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…are extremely precise?

Our watches run under much more extreme conditions than an atomic clock in an optimal environment. The output is impacted from position change, fluctuating temperatures, magnetism, dust, condensation, irregular winding and lubrication. Even so, our watches still count 86,400 seconds a day and even if they vary just a little bit, they are still pretty close to the 100%-accuracy.
If our watches gain one second a day, the deviation is only 0,0011 percent!
Pretty accurate, isn't it?

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…are mounted with screws so tiny…

…that 50,000 of them will fit in an thimble. Their volume is around 0.054 mm3 which makes them almost invisible to the eye and each screw has an excellent thread and a fine polished head. This gives you an idea of the precision which is necessary in modern watch-production.

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…are compensating enormous temperature fluctuations?

Fluctuations of temperature have an influence on the accuracy of the watch. A single and steady change in the temperature of 5C is enough to cause the watch to gain or loose 1 minute a day. Our watches are subject to much stronger fluctuations - but they are still very accurate. Why? They are constructed to automatically compensate for external influences or eliminate them completely. This is realized by taken advantage of the different behavior of various metals when temperature changes.

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…are faster than a train?

The wheels of a train travelling at the speed of 90 km/h are rotating only with half the speed of the balance wheel in our watches. Don't forget, our watches aren't just doing this for a few hours but all day long, day by day, year by year.

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…work more than a car?

Once a car tire has made 120 million rotations, the car will have travelled 250,000 km and the car will be old. The balance wheel of our watches complete 315.360.000 half-rotations, about 3 billion, 153 million 600 thousand half-rotations after 10 years. And the watch will still be working - although it may need a little inspection!

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…do incredible work?

driven by only 0.000 000 01 HP, the balance wheel of our watches makes 432,000 rotations a day. Every day. This translates to 20km a day.
In 51/2 years this is equal to the circumference of our planet.

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