Earnshaw's detached chronometer escapement In 1780, English-born watchmaker Thomas Earnshaw devised a modification to the detached chronometer escapement in which the detent was mounted on a spring instead of on pivots. This compensation balance was used in the standard marine chronometer thereafter. In November 1792, Earnshaw succeeded to the business at 119 High Holborn, London, where he manufactured chronometers to a standard plan, eventually overseeing the batch production of movements by outside workers. He was the first to simplify and economise the production of marine chronometers, making them available to the general public. Image Credit Model of Earnshaw's escapement. ID: ZAA0123. Credit: National Maritime Museum, Greenwich, London, CC BY-NC-ND 3.0, https://www.rmg.co.uk/collections/objects/rmgc-object-79228
