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John Arnold (1736 – 11 August 1799) was an English watchmaker and inventor. John Arnold was the first to design a watch that was both practical and accurate, and also brought the term "chronometer" into use in its modern sense, meaning a precision timekeeper. His technical advances enabled the quantity production of marine chronometers for use on board ships from around 1782. The basic design of these has remained, with a few modifications unchanged until the late twentieth century. His legacy includes, together with Abraham-Louis Breguet, as one of the inventors of the modern mechanical watch. One of his most important inventions, the overcoil balance spring is still used in most mechanical wristwatches.

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  • John Arnold (* 1736 in Bodmin, Cornwall; † 25. August 1799 in , Kent) war ein Uhrmacher und Erfinder sehr zuverlässiger Schiffschronometer. Er trug mit seinen Arbeiten entscheidend zur Lösung des Längenproblems bei. (de)
  • John Arnold (1736 – 11 August 1799) was an English watchmaker and inventor. John Arnold was the first to design a watch that was both practical and accurate, and also brought the term "chronometer" into use in its modern sense, meaning a precision timekeeper. His technical advances enabled the quantity production of marine chronometers for use on board ships from around 1782. The basic design of these has remained, with a few modifications unchanged until the late twentieth century. His legacy includes, together with Abraham-Louis Breguet, as one of the inventors of the modern mechanical watch. One of his most important inventions, the overcoil balance spring is still used in most mechanical wristwatches. It was from around 1770 that Arnold developed the portable precision timekeeper, almost from the point where John Harrison ended his work in this field. But, compared to Harrison's complicated and expensive watch, Arnold's basic design was simple whilst consistently accurate and mechanically reliable. Importantly, the relatively simple and conventional design of his movement facilitated its production in quantity at a reasonable price whilst also enabling easier maintenance and adjustment. Three elements were necessary for this achievement: * A detached escapement, which gave minimal interference with the vibrating balance and balance spring * A balance design that enabled compensation for the effect of temperature on the balance spring * A method for adjusting the balance spring, so that the balance oscillates in equal time periods, even through different degrees of balance arc (en)
  • ジョン・アーノルド(John Arnold 、1736年 - 1799年8月11日)はイギリスの時計師である。コーンウォールのの出身とされる。 アブラアム=ルイ・ブレゲと親交があった。ブレゲがアーノルドの技術を讃える目的で、アーノルド製の懐中時計にブレゲ考案のトゥールビヨン機構を加えた時計が残っており、「アーノルド・ウォッチ」と呼ばれている。息子のジョン・ロジャー・アーノルド(1769年-1843年)はブレゲのもとで学んだ後、父と共に「アーノルド&サン(Arnold & Son)」を設立した。 「アーノルド&サン」はアーノルド親子の死後は他社への合併を経て消滅したが、1995年にスイスのラ・ショー=ド=フォンで復活した。現在は複雑機能を搭載した腕時計を製造している。 (ja)
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  • 1736-01-01 (xsd:gYear)
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  • 1736-01-01 (xsd:gYear)
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  • 1736 (xsd:integer)
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  • John Roger Arnold (en)
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  • Well Hall, Eltham, Kent, England (en)
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  • 160 (xsd:integer)
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  • John Arnold (en)
dbp:occupation
  • Watchmaker (en)
dbp:organization
  • Arnold & Son, Breguet (en)
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  • John Arnold (* 1736 in Bodmin, Cornwall; † 25. August 1799 in , Kent) war ein Uhrmacher und Erfinder sehr zuverlässiger Schiffschronometer. Er trug mit seinen Arbeiten entscheidend zur Lösung des Längenproblems bei. (de)
  • ジョン・アーノルド(John Arnold 、1736年 - 1799年8月11日)はイギリスの時計師である。コーンウォールのの出身とされる。 アブラアム=ルイ・ブレゲと親交があった。ブレゲがアーノルドの技術を讃える目的で、アーノルド製の懐中時計にブレゲ考案のトゥールビヨン機構を加えた時計が残っており、「アーノルド・ウォッチ」と呼ばれている。息子のジョン・ロジャー・アーノルド(1769年-1843年)はブレゲのもとで学んだ後、父と共に「アーノルド&サン(Arnold & Son)」を設立した。 「アーノルド&サン」はアーノルド親子の死後は他社への合併を経て消滅したが、1995年にスイスのラ・ショー=ド=フォンで復活した。現在は複雑機能を搭載した腕時計を製造している。 (ja)
  • John Arnold (1736 – 11 August 1799) was an English watchmaker and inventor. John Arnold was the first to design a watch that was both practical and accurate, and also brought the term "chronometer" into use in its modern sense, meaning a precision timekeeper. His technical advances enabled the quantity production of marine chronometers for use on board ships from around 1782. The basic design of these has remained, with a few modifications unchanged until the late twentieth century. His legacy includes, together with Abraham-Louis Breguet, as one of the inventors of the modern mechanical watch. One of his most important inventions, the overcoil balance spring is still used in most mechanical wristwatches. (en)
rdfs:label
  • John Arnold (de)
  • John Arnold (Uhrmacher) (de)
  • John Arnold (watchmaker) (en)
  • ジョン・アーノルド (ja)
  • John Arnold (nl)
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  • John Arnold (en)
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