Tourbillon
Videos
In horology, a tourbillon is an addition to the mechanics of a watch escapement to increase accuracy. Conceived by the British watchmaker and inventor John Arnold, it was developed by his friend, the
An assembled tourbillon
Anthony Randall's double axis tourbillon as installed in a carriage clock
Greubel Forsey Double Tourbillon Technique, an example of which won the 2011 International Chronometry Competition held by the Horological Museum in Le Locle
Greubel Forsey Double Tourbillon 30° mechanism
Escapement
Videos
An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's ha
Tourbillon
…In horology, a tourbillon (; also tourbillion, ) (French for 'whirlwind') is an addition to the mechanics of a watch escapement to increase accuracy. Conceived by the British watchmaker and inventor John Arnold, it was developed by his friend, the Swiss-French watchmaker…
Original drawing (c. 1637) of Galileo's pendulum clock and escapement
Pin wheel escapement of South Mymms tower clock
First detent escapement by Pierre Le Roy 1748
Earnshaw's detent escapement, used widely in chronometers