Perhaps the most beautiful of all mechanical timepieces, the marine chronometer was a long time in development. This exceedingly good book gives an outline of the problem of longitude, before telling, in fairly technical terms, how the marine chronometer developed, including John Harrison’s considerable contribution to this. Also covered are the chronometers’ mechanism, and its maintenance, as well as makers and other types of chronometers. 112 pages, packed with drawings and illustrations, many in colour. Hardbound. The Crowood Press.

Highly recommended!