Pierre Jaquet-Droz – Complete Biography, History and Inventions

Pierre Jaquet-Droz, 1758

Pierre Jaquet-Droz – Complete Biography, History and Inventions

Pierre Jaquet-Droz painted portrait
Pierre Jaquet-Droz was a Swiss-born watchmaker and mechanical genius.

Who was Pierre Jaquet-Droz

Pierre Jaquet-Droz was a Swiss born watchmaker and mechanical genius. His watches and mechanical inventions combined artistically beautiful designs and intricately detailed mechanisms to create stunning masterpieces. In addition to self-winding watches and mechanical birds, Jaquet-Droz created three androids. These devices were made to look like children that each had a skill. One could write, one could draw pictures, and the other could play the harmonium. He made his devices with the help of his sons Henri-Louis Jaquet-Droz and Jean-Frédéric Leschot.


Quick Facts

Full Name
Pierre Jaquet-Droz
July 28, 1721
November 28, 1790
Net Worth
Julie, Henri-Louis Jaquet-Droz, and Jean-Frédéric Leschot.
Place of Birth
La Chaux-de-Fonds, Switzerland
Fields of Expertise
[“Horology”,”Micro Mechanics”,”Automata”]
University of Basel, University of Neuchatel
Androids, Automata

Early Life

Pierre Jaquet-Droz was born on a farm in La Chaux-de-Fonds, Switzerland in 1721. He studied philosophy at the University of Basel and then moved on to the theology department at the University of Neuchatel 20km away. During this time he was introduced to watchmaking and miniature mechanics by some of his relatives. This type of craft captured his attention and it soon became his main focus. A master watchmaker, named Josue Robert, and his two sons trained Pierre Jaquet-Droz in the art of horology for nearly a decade.


Pierre Jaquet-Droz’s career grew steadily from watchmaker’s apprentice to world-wide notoriety as an artist, micro mechanic, and inventor.

First Shop

Pierre Jaquet-Droz set up his first shop in 1738 where he would build long-case clocks in his own style. As he progressed, he began incorporating music and decorative movements to his pieces. He built up his reputation and skills for the next 12 years. Pierre was then married to the daughter of the local clock case supplier, Marianne Sandoz. They had a daughter, Julie, a few years later, and then Henri-Louis the following year. Sadly, both Julie and Marianne died in 1755.


After the deaths of his wife and daughter, he shifted his focus to his work and his son. The popularity of his work introduced him to many influential people. He eventually met George Keith who was the governor of Neuchatel and ambassador to Spain. George encouraged Pierre to visit Spain and present his work to the Spanish royal court. Pierre Jaquet-Droz travelled to Spain in 1755. He brought 6 clocks, an assistant, and his father-in-law Abraham-Louis Sandoz. The group had to wait several months until being received by the king, but it turned out to be a very worthwhile visit. Everyone was so impressed with his work that not only did the king buy all six of his clocks for a large amount of silver, but the other ambassadors present placed orders for their heads of state as well. This trip to Spain gave Pierre the freedom to grow his business and fund any projects that he wanted to develop over the next several years. This freedom would eventually lead to the development of his androids.

Androids and Touring

From 1767 to 1774, Pierre, his son Henri, and his adopted son/apprentice Jean-Frédéric Leschot developed three humanoid automatons. They would write, draw, and play the harmonium respectively. The draftsman and the musician are each composed of roughly 2500 pieces. The writer, needing to be much more dexterous, has over 6,000 pieces. These engineering marvels would be taken on tour with the family and astound audiences throughout Europe.

The Writer automaton created by Pierre Jaquet-Droz
This automaton, created by Pierre Jaquet-Droz, is called “The Writer.” The boy was built in Switzerland.


More Shops

Now that his work was so famous, Pierre decided to expand to more than just the single shop in La Chaux-de-Fonds. In 1774, Pierre opened a London branch of his business that was managed by his sons. The London branch helped to spread Jaquet-Droz pieces all over the world. Their caged birds became quite popular with the imperial court of Beijing. The London shop had been established and was so successful for a decade that Henri-Louis opened a third shop in Geneva in 1784.

Final Years

The three shops were running quite well for the first couple of years, but due to a string of bankruptcies and poor business associates the company was forced to shut down in 1788. Pierre died two years later. Henri followed the year after. Jean-Frédéric continued on his own for the next twenty years, but in a significantly reduced capacity. He did not develop any new designs, and simply produced variations of their older works. Jaquet-Droz Leschot watches simply evaporated around 1810.

What is Pierre Jaquet-Droz Known For?

Pierre Jaquet-Droz is known for his watches, songbirds, and androids. He built automated scenes and animals, and even people. Using intricate, delicate, and sophisticated micro machinery Pierre Jaquet-Droz was able to add movement and sound to art. Expanding on the already complex workings of a Swiss watch, Pierre could have tiny mechanical birds sing and fly. They could trill as they moved their wings and heads. He would then move on to Jewelry boxes and snuff cases that had moving scenes and birdsongs. Large ornate bird cages with an automata bird was the next logical step. After mastering this unique type of mechanical skill, Pierre went on to create three stunningly lifelike, for the time, androids that could draw, write, and play the harmonium.

The Draftsman by Pierre Jaquet-Droz
Pictured is “The Draftsman,” an automatron created by Pierre Jaquet-Droz.


His watches were revolutionary for their time. His incorporation of sound and shaped movement. He developed the automatic winding pocket watch using a tiny inertia block. The oscillations of the inertia block wind the spring of the watch with a click system as the person walks.


He created shaped movement scenes filled with butterflies, animals, and birds with real feathers. Each bird could actually sing their own unique song by using sliding piston whistles.

Three Androids

He created three androids. The writer, the musician, and the draftsman. The musician was made to look like a young girl playing a harmonium. The other two were young boys sitting at desks. The draftsman could draw surprisingly detailed drawings. The writer was the most sophisticated of the three. It could write any message up to 40 spaces in length. It would ink its quill and gracefully scribe out the intended message.

The Musician by Pierre Jaquet-Droz
The Musician automaton by Pierre Jaquet-Droz (© Museum of Art and History of Neuchâtel)

Pierre Jaquet-Droz: Net Worth, Marriage, Children, Tragedy

Net Worth

Pierre Jaquet-Droz was a wealthy man for much of his life, although he did start to have financial problems later in his life due to bankruptcies abroad. Pierre died in 1790 and his son Henri-Louis died the following year. Jean-Frédéric did not create any new designs after losing his two partners. He would still produce variations of older designs for the next two decades, but would finally close the business around 1810. The name Jaquet-Droz was reestablished in 1989 by a Saudi-English company that purchased the rights. The company is now owned by Swatch and is one of their most successful brands.


Pierre Jaquet-Droz married Marianne Sandoz in 1750. She was the daughter of the local supplier of clock cases.


Julie, Henri-Louis Jaquet-Droz, and Jean-Frédéric Leschot


His wife and daughter both died in 1755.

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Frequently Asked Questions

What did Pierre Jaquet-Droz do?

Pierre Jaquet-Droz started out as a watchmaker in a small Swiss village near the French border. He was introduced to the skill by his family and he was trained by a local watchmaker. As time went on, and his skills grew, he started to build more elaborate pieces. Each work would have enormous beauty and intricate function. He would incorporate music by using tiny whistles and chimes. These sounds would work in concert with the flying birds or other automata involved.

How does the writer automaton work?

The writer automaton was the most complex of the three androids. The entire device has over 6000 parts and can write any text up to 40 characters long. It is made to look like a little dark haired boy, wearing a lace collar, cuffs, and a maroon jacket, sitting at a desk. The torso is fitted with an intricate support structure that holds a vertical cylinder The word disk contains the letters of the words that will be written and it controls the cam cylinder. Three cams are needed per letter. Two to draw the letter, and one to press with varying degrees of pressure on the goose feather pen that makes the strokes. The writer must also dip his pen in the inkwell to load it and then shake off any excess ink before writing.

Where are Jaquet-Droz watches made?

The Jaquet-Droz et Leschot was established in 1784 by Pierre and his two sons. Pierre died six years later in 1790. The company lasted another decade or so, but eventually ceased production. Nearly 200 years later, in the 1990s, the company reemerged as Jaquet Droz. The Swatch Brand acquired Jaquet Droz in the year 2000. Currently, the company is based at the original location in Switzerland. Jaquet-Droz is operating out of the same building that first carried the name back in 1738. The production factory is next to Greubel Forsey just outside La Chaux-de-Fonds. It sits in a small industrial park, next to the highway, with a few other small factories. You can see the town in the distance across the green Swiss countryside.

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