
5 Hz The Five-High Club
Eight manufactures that master the 5 Hz movement frequency. This technical threshold remains both a rarity and a feat
It all began at 2.5 Hz. Then 3 and then 4. The frequency movements beat at has long been a major issue, both technological and commercial, especially when technology was a major sales argument. The number of vibrations of the balance wheel inside a mechanical movement is one of the most reliable and prestigious ways to increase its accuracy. And when Zenith managed to perch the El Primero on the 36'000 vph branch in 1969, they defined a record that held for over 30 years.

Zenith Chronomaster Open © David Chokron/WorldTempus
It wasn't alone up there for long. Some, including Girard-Perregaux and Longines, managed to climb alongside, but they quickly moved away from this plateau, having failed to reap steady commercial success from it and having been plagued with heavy reliability issues. Consistently flying at « 36k » altitude is therefore a badge of honor. After several watches managed to overtake it with 6, 8 and 10 Hz movements around the year 2010, the aura of accomplishment around those who had reached that ceiling was slightly blemished. A glass ceiling, it was not anymore. Still, what an effort that little leap from 4 to 5 Hz had demanded !

Longines Ultra-Chron © David Chokron/WorldTempus
So the 5-high club still is a rather small one. It has a dozen or so member brands, all of which still keep these high frequency movements going. High frequency being somewhat of an ironic term when one thinks that when the 5 Hz mark was reached by mechanical means, quartz movements headed straight for 32 768 Hz ! But considering the set of specific constraints the former face, 5 Hz puts one in rarefied air...and oil.

Patek Philippe 10th © David Chokron/WorldTempus
It so happens that lubrication is the crux of the high frequency matter. There nothing to having a balance wheel beating at high speeds. The issue lies with its companion parts, namely lever and escape wheel.

Tradition Chronographe Indépendant © Breguet
They sustain heavy friction which forbids them to stay the course. To circumvent this fatigue, one can either lubricate more or better. But because of high speeds, oil tends to be shaken away from the pallets. The stakes are obviously at their highest when the entire movement beats at 5 Hz, but constraints appear as soon as anything beats that fast, like the chronograph side of the Breguet Tradition Chronographe Indépendant 7077. Research in tribology has garnered significant enough progress as to render the point moot. Lubricants have become incredibly efficient and silicon parts are naturally friction-free, with no substance added.

Blancpain Air Command © David Chokron/WorldTempus
Zenith (and therefore Bulgari), Patek Philippe, Grand Seiko, Vacheron Constantin, DeBethune, Parmigiani and Richard Mille via Vaucher Manufacture, Longines via ETA, Omega via Blancpain and the latter as a matter of course all master the 5 Hz art. But not all of them use silicon escapement parts. Zenith uses both, and Vaucher uses steel and rubies only. Which is further proof that watchmaking ingenuity is based in both radical innovation and in optimizing its existing tool box.

Vacheron Constantin Traditionnelle Twin Beat © David Chokron/WorldTempus
Brands
Blancpain is the archetypal Manufacture: with a watchmaking heritage dating back several centuries, it has successfully preserved its watchmaking tradition, whilst welcoming a spirit of innovation.
Find out more >Bulgari has its own clear definition of excellence, which involves the perfect balance between design, added-value, quality of its products and its worldwide service. In the case of Bulgari...
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De Bethune embraces the wealth of the watchmaking knowhow of the past in order to design the watches of the future. This combination results in timepieces with all the attributes and technical...
Find out more >Ever since 1791, Girard-Perregaux has been pursuing its course in the best tradition of Fine Watchmaking. The Maison’s history has been characterised by legendary timepieces that combine...
Find out more >From the very beginning, Grand Seiko has been pursuing the essential characteristics of a watch: precision, beauty, legibility. Its design reflects the unique Japanese sense of beauty. The brand...
Find out more >A company of the Swatch Group, OMEGA has been behind major revolutions in watchmaking technology and the timekeeping of numerous Olympic Games. Its watches are worn by world-famous celebrities and...
Find out more >One of the more recent success stories of the Swiss watchmaking industry, Parmigiani Fleurier emerged from the close relationship between watchmaker Michel Parmigiani and the Sandoz Family Foundation.
Find out more >Patek Philippe enjoys outstanding renown and rare prestige, due to the constancy with which the Manufacture has applied its philosophy of excellence ever since it was founded.
Find out more >Richard Mille did not simply try to find his place in the watchmaking world – he carved one out for himself, constantly striving not to take anything for granted, and to make innovation and extreme...
Find out more >An exploration of the history of Vacheron Constantin is a voyage of discovery, revealing the excellence of age-old watchmaking. Each timepiece is the result of the creative inspiration of the...
Find out more >Ever since it was founded, Zenith has been cultivating the ability to open up new horizons by assisting with some of the most remarkable human achievements.
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