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70s Girard Perragaux High Frequency Gyromatic Very Rare!!

Why is a higher frequency movement more accurate?

At a very fundamental level, a higher frequency movement is more accurate than a lower frequency movement simply because it divides time into finer increments. Finer increments of time measurement translates into higher resolution which means a 36,000 bph movement is capable of 1/10th of a second timing where as a 28,800 bph movement is only capable of 1/8th of a second timing. Statistically high frequency watch movements should also be more accurate simply because the higher number of beats per time interval means that the stability of time keeping of these movements (i.e. the average accuracy) should be higher than a lower beat movement simple because the average is established over a greater number of beats. Put another way, the inaccuracy of any single beat has less of an impact on accuracy since more beats go into timekeeping for a given time period.

Girard Perragaux. In 1852, watchmaker Constant Girard founded a company amed Girard & Cie Firm in La Chaux-de-Fonds, Switzerland. A few years later, Constant Girard married Marie Perregaux and a new company called Girard-Perregaux Manufacture was formed in 1856. In 1906, Constant Girard-Gallet, who took over control of the Girard-Perregaux Manufacture from his father, took over the Bautte House and merged it with Girard-Perregaux. Bautte House watch manufacturing history traces it roots back to 1791 and master watchmaker and jeweller Jean-François Bautte.

Girard-Perregaux continues that tradition of building movements, cases and most other components of their watches all under their own roof. From a cost efficiency standpoint, sub-contracting out work would result in lower manufacturing cost. But if value for money were the issue than one would never buy a Girard-Perregaux, or any other mechanical watch for the matter. A Girard-Perregaux is a luxury item. A functional piece of jewelry whose value is not measure in carats, but in craftsmanship. The name on the dial, is a guaranty of the entire product. It is the old way of doing things, and that is what you pay for.

But a company building in-house, also contributes in terms of development of the entire industry. You get a watch built not only by businessmen, but by craftsmen. Craftsmen always looking to further the art.

In this respect, Girard-Perregaux has about 80 patents. In 1880, Constant Girard developed the concept of wristwatches, made for German naval officers and ordered by Emperor Guillaume I of Germany. Two-thousand watches were produced, which represents the first large order of wrist watches commercialization of wristwatches. Prior to this, Patek Philippe did build a wristwatch. A one-off special order. This does not detract from the vision of Constant Girard, who together with Patek Philippe and Cartier Santos Dumont can share the credit for being the fathers of the wristwatch.

Modern mechanical watches beat at the rate of 28,800 beats per hour. Meaning the second hand ticks 8 times per second, giving the illusion of a smooth movement. In 1965, Girard-Perregaux built a movement which beats at 36,000 beats per hour, which was than twice as fast as the typical mechanical movement. While the industry has standardized with movements that produced 21,600 to 28,800 beats per hour, given considerations of wear and tear and power reserve, some chronograph watches like the TAG Heuer Concept Chronograph use a fast beat 36,000 movement to allow the watch to measure period of elapsed time to an accuracy of 1/10th of a second. This seemingly cutting edge technology is 45 years old, courtesy of Girard-Perregaux.

More ground breaking was the development by Girard-Perregaux of a quartz movement which vibrates at 32,768 hertz, the frequency remaining the universal standard for quartz watches today. More recently in 2008, Girard-Perregaux created a constant force escapement. A constant force escapement is an escapement designed to give exact measured impulses to a balance and hairspring or a pendulum, and thus avoid changes in rate caused by variations in the driving force. Only time will tell, but this new design could radically improve the accuracy of mechanical watches.

This is a very reluctant sale as i have not really found a vintage 70s nice beautiful 44mm case with 2 crowns (just press onto one of them to change the date, very simple indeed, inner rotating bezel with high power reserve and incredible accuracy! Very clean dial and hands, the only flaws is the tiny dents in the inner rotating bezel, selling head only without bracelet. $1599 including shipping Worldwide.

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