Appear in Albert Piguet's memorial, Napoleon III is not by far yet emperor of France, the American Civil War in the United States is not even possible, while in Switzerland, Sonderbund will happen only 5 years later. In the streets of "le Brassus" in the "Vallée de Joux", people move with foot and one can see sometimes a horse drawing in a cart some bags from grain, some bundles of hay or then some case of parts in ruby...
Piguet Frères's factory will be built only in 1887, as this extract of Albert Piguet's memorials attests it:
Albert Piguet's memorials
It is Albert Piguet and his brother Edouard, sons of Ernest (1834-1903) and grandsons of David Henri (1810-1879), who founded Piguet Frères's factory in 1887. Albert's memorials recalls not only the great events of the company, but also those of the Piguet family and the historical and political context of the time.

The new railroad "Le Pont - Brassus" is inaugurated, the village of "le Sentier " accommodates young gymnasts... a new factory is built.

The few found photographs
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| Le Rocher about the year 1880, before the construction of Piguet Frères's factory. |
An aqueduct channels the water of the river in order to activate the machines. It is its energy which makes it possible to bore the first ruby stones in "le Brassus". |
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| 1890 - 1900 | 1950 - 1960 |
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| My dear Jules,
You wonders where I sought this cart: "au Brassus". Where thus is this country? I will not give you an answer on this point, it will be enough for me to tell you that it is a charming place where Berthe and me are happy to spend a few moments. In our happiness, we well really think of you and we let us send to you a crowd of embraces "in smuggling" from Switzerland. Your big brother Gaëtan On the side: They are far the "Jurassiens" and yet they do not forget you and kiss you. B. |
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Knowledge built on several generations
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| Love of work well done | |
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| The workshop of the men... | … and the workshop of the women! |
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| The rules of the factory define the schedules of work, the vacation, etc. | |
| Each employee is registered in the ledger. | |










