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- Abraham-Louis_Perrelet abstract "Abraham-Louis Perrelet, (9 January 1729 – 1826), born in Neuchâtel in Switzerland, was a Swiss horologist.Perrelet invented a self-winding mechanism in 1770s for pocket watches. It worked on the same principle as a modern wristwatch, and was designed to wind as the owner walked, using an oscillating weight inside the large watch that moved up and down.The Geneva Society of Arts reported in 1777 that fifteen minutes walking was necessary to wind the watch sufficiently for eight days, and the following year reported that it was selling well. Perrelet is thus widely acknowledged as the inventor of the basic movement known as 'automatic' today. This hypothesis has been recently challenged, as we do not know precisely what was the movement he created. It was pointed out that the first drawing and accurate description of an automatic watch has been created in 1778 by the watchmaker Hubert Sarton fr:Hubert Sarton and that we cannot be sure that the Perrelet watch was actually based on a rotor principle (some others watch makers are also known to have created automatic watches in the 1770s). In 1780 Perrelet created the first pedometer, measuring the steps and distance while walking.".
- Abraham-Louis_Perrelet birthDate "1729-01-09".
- Abraham-Louis_Perrelet birthPlace Neuch%C3%A2tel.
- Abraham-Louis_Perrelet birthPlace Neuchâtel.
- Abraham-Louis_Perrelet birthPlace Switzerland.
- Abraham-Louis_Perrelet birthYear "1729".
- Abraham-Louis_Perrelet deathDate "1826".
- Abraham-Louis_Perrelet deathYear "1826".
- Abraham-Louis_Perrelet occupation Abraham-Louis_Perrelet__1.
- Abraham-Louis_Perrelet occupation Horology.
- Abraham-Louis_Perrelet occupation Invention.
- Abraham-Louis_Perrelet thumbnail Perrelet.png?width=300.
- Abraham-Louis_Perrelet wikiPageExternalLink www.perrelet.com.
- Abraham-Louis_Perrelet wikiPageID "24285054".
- Abraham-Louis_Perrelet wikiPageRevisionID "600837683".
- Abraham-Louis_Perrelet alt "Perrelet working on a watch".
- Abraham-Louis_Perrelet birthDate "1729-01-09".
- Abraham-Louis_Perrelet birthPlace Neuchâtel.
- Abraham-Louis_Perrelet birthPlace Switzerland.
- Abraham-Louis_Perrelet dateOfBirth "1729-01-09".
- Abraham-Louis_Perrelet dateOfDeath "1826".
- Abraham-Louis_Perrelet deathDate "1826".
- Abraham-Louis_Perrelet hasPhotoCollection Abraham-Louis_Perrelet.
- Abraham-Louis_Perrelet name "Abraham-Louis Perrelet".
- Abraham-Louis_Perrelet name "Perrelet, Abraham-Louis".
- Abraham-Louis_Perrelet notableWorks Automatic_watch.
- Abraham-Louis_Perrelet occupation Horology.
- Abraham-Louis_Perrelet occupation Invention.
- Abraham-Louis_Perrelet parents "Daniel Perrelet".
- Abraham-Louis_Perrelet placeOfBirth Neuchâtel.
- Abraham-Louis_Perrelet placeOfBirth Switzerland.
- Abraham-Louis_Perrelet shortDescription "horologist".
- Abraham-Louis_Perrelet description "horologist".
- Abraham-Louis_Perrelet description "horologist".
- Abraham-Louis_Perrelet subject Category:1729_births.
- Abraham-Louis_Perrelet subject Category:1826_deaths.
- Abraham-Louis_Perrelet subject Category:Luxury_brands.
- Abraham-Louis_Perrelet subject Category:Swiss_people.
- Abraham-Louis_Perrelet subject Category:Watch_brands.
- Abraham-Louis_Perrelet subject Category:Watch_manufacturing_companies_of_Switzerland.
- Abraham-Louis_Perrelet subject Category:Watchmakers_(people).
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- Abraham-Louis_Perrelet comment "Abraham-Louis Perrelet, (9 January 1729 – 1826), born in Neuchâtel in Switzerland, was a Swiss horologist.Perrelet invented a self-winding mechanism in 1770s for pocket watches.".
- Abraham-Louis_Perrelet label "Abraham Louis Perrelet".
- Abraham-Louis_Perrelet label "Abraham-Louis Perrelet".
- Abraham-Louis_Perrelet label "Abraham-Louis Perrelet".
- Abraham-Louis_Perrelet label "Abraham-Louis Perrelet".
- Abraham-Louis_Perrelet label "Abraham-Louis Perrelet".
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- Abraham-Louis_Perrelet depiction Perrelet.png.
- Abraham-Louis_Perrelet givenName "Abraham-Louis".
- Abraham-Louis_Perrelet isPrimaryTopicOf Abraham-Louis_Perrelet.
- Abraham-Louis_Perrelet name "Abraham-Louis Perrelet".
- Abraham-Louis_Perrelet name "Perrelet, Abraham-Louis".
- Abraham-Louis_Perrelet surname "Perrelet".