Marine & Pocket Chronometers by Hans Von Bertele

Marine & Pocket Chronometers by Hans Von Bertele
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  • Item #: BK-270

BK-270

Fascinating development & history of the chronometer. Includes important manufacturer biographies and 18th century voyages of chronometer development. 350 chronometers and their scientific data are discussed in detail. Over 800 black and white photos of chronometers, cases, balance units detailed diagrams and charts. Chapters include: The problem of longitude; Forerunners of the mechanical chronometer; Development and inventors of the balance and movements; Chronometers influence on sea travel and geographical discovery: The age of fine mechannics; Chronometer development in the 20th century; Tourbillions and Carousels. Also Official Evaluations: completions, their certificates and certification, testing organizations and regulations. Extensive bibliography for further reference.
216 Pages. 9-1/2 x 12-1/2"
Hardcover

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Price $100.00