John Arnold:
A finger on the pulse of his time
John Arnold was born in Cornwall in 1736. His father was a
watchmaker and his uncle a gunsmith, which probably explains his
early interest in precision engineering and metalwork. A talented
craftsman and scholar, he left England for the Netherlands at the
age of 19 after completing his apprenticeship to hone his
watchmaking skills. He returned two years later speaking excellent
German, which stood him in good stead later at the court of George
III, and had established himself as a watchmaker of repute in
London's Strand by his mid-twenties.
After Arnold presented the smallest repeating watch ever made to
King George III and to the court, he rapidly acquired a wealthy
clientele. He was one of the most inventive watchmakers of his day
and held patents for a detent escapement, bimetallic balance and
helical balance spring . Arnold's "No. 36" was the first timepiece
to be called a chronometer, a term reserved for unusually precise
watches to this day.