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Girard-Perregaux 1966 annual calendar and equation of time
The 1966 range reminds us of the glorious chronometric past of Girard-Perregaux.
In 1966 Girard-Perregaux presented the first high frequency calibre beating at 36000 vph, fitted in the Gyromatic HF. This calibre created in-house by the Girard-Perregaux research and development team brought exceptional timing results and as a matter of consequence lead the State Council of the Canton to attribute to Girard-Perregaux the Centenery Prize of the Neuchatel Observatory. In fact the first production series Gyromatic HF watches sent to the chronometric competitions were confronted to specially prepared competitors.
In 1967 Girard-Perregaux received 662 certificates of chronometry from the Neuchatel observatory, i.e. 73% of those delivered in the classical wrist watch category.
The following years saw the Girard-Perregaux team develop their first quartz calibre and settle the 32 768 Hz frequency that is still used today. But that’s another story…..
The simple elegance of the 1966 range is a tribute to such precision timing but the range has expanded to complications.
For last year’s SIHH Girard-Perregaux presented a new iteration of this 1966 range. The annual calendar and equation of time 1966 in pink gold was then followed this year by a white gold version. I wanted to share with you some technical aspects of this watch that I find to be particularly appealing by its combination of usefulness (the annual calendar with the indication of the date and the month) and poetry (the equation of time showing the slight difference between the true solar time and the mean time).
Here it is: gp.watchprosite.com /
