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John Arnold - Wikipedia, the free encyclopedia (351 words) |
 | John Arnold (born 1736 in Bodmin, Cornwall; died 1799 in London) was a watchmaker who developed and patented escapement and balance spring designs. |
| Arnold's son John Roger Arnold was born in 1769 and served an apprenticeship with both his father and the eminent French watchmaker Abraham Louis Breguet. |
| From 1787 he and his father founded the company Arnold and Son, which, after his father's death in 1799, John Roger continued with John Dent until 1840. |
| Edward John Dent - Wikipedia, the free encyclopedia (264 words) |
| Edward John Dent (1790-1853) was a famous English watchmaker noted for his highly accurate clocks and chronometers. |
| Dent confirmed his expertise by creating in 1829 a chronometer action that incorporated an improved method of reducing the timing errors caused by fluctuations in temperature. |
| Dent established a workshop in the Savoy to produce this excellent timepiece, which was installed in 1844. |
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