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For many years, Tony Mercer, grandson of the most enduring English maker, has studied and collected a huge amount of information about marine chronometers, instruments which enabled explorers and the Royal Navy to map the world, the Navy to police it, and merchant venturers to sail in relative safety. The purpose of the chronometer is reviewed largely as a navigational aid for ocean-going vessels, but also for survey, medical, and other activities calling for precise time measurement. Representative examples of chronometers and deck watches by international makers—from the earliest known to contemporary instruments—are illustrated in both color and black and white. A comprehensive list of makers and craftsmen brings together details of men who worked in the industry, their places of work, and dates and serial numbers for their instruments.

Elevate your style with this stunning Omega Co-Axial Chronometer Quadrante Bianco Acciaio watch for women. Featuring a white dial, stainless steel case, and automatic movement, this timepiece is both elegant and reliable. With a water resistance of 150 meters, sapphire crystal, and stainless steel bracelet, this watch is perfect for any occasion.

Circa 1980s This is an authentic, pre-owned OMEGA piece. It's possible that there may be some gentle wear. Automatic chronograph movement 18K yellow gold and Stainless Steel bracelet Deployment with push button clasp 18K Yellow Gold bezel Stainless Steel case Sapphire crystal Screw down crown White dial Date display Case: 42mm Bracelet/strap: 20mm wide x 7.5in long Water-resistant up to 300 meters 1-year limited third party warranty Independent Appraisal and Generic Box Our products are 100% genuine. In some cases we purchase merchandise from trusted independent suppliers and not directly from the brand owner. In all cases we stand by the authenticity of every product sold on our site.

Discover the elegant Frederique Constant women's watch, featuring an automatic movement, brown dial, stainless steel case, 39mm diameter, 5 Bar water resistance, sapphire crystal, stainless steel bracelet in silver, and stainless steel clasp.

Elevate your style with this sleek Mido watch for men. Featuring an automatic movement, silver dial, stainless steel case, 40.00 mm diameter, 3 bar water resistance, sapphire crystal, stainless steel bracelet in grey, and stainless steel clasp.

Elevate your accessory game with the Mido Watch for Men - M0384313705109 - M038.431.37.051.09 Auto Chronometer Multifort. This automatic timepiece features a sleek steel case with a 42mm diameter and 10 ATM water resistance. The sapphire glass ensures durability, while the textile strap with a buckle closure adds a touch of style.

Introducing the Omega Womens Automatic Watch in a sleek design. The white dial perfectly complements the gold case, measuring 39.5mm in diameter. With a water resistance of 3 bar (30 meters / 100 feet), this watch is suitable for everyday wear. The scratch-resistant sapphire glass ensures durability, while the black leather strap adds a touch of elegance. Complete with a white gold closure, this Omega timepiece is a must-have accessory for any fashion-forward woman.

First published in 1923, this long-awaited edition of the definitive reference work on the marine chronometer contains additional photographs and many of Rupert Gould's later revisions and corrections. It deals comprehensively with the chronometers history and the earliest attempts to measure longitude while including exhaustive discussions and diagrams of the various mechanisms employed with details of their inventors. It is an extraordinary fact that the first machines capable of accurately determining a ship's longitude, a measurement the great Sir Isaac Newton considered to be a mechanical impossibility, were invented and built by an obscure Yorkshire carpenter named John Harrison (1693 1776). Amazingly, the latter was entirely self-educated and had never served a days apprenticeship to any clockmaker. The Marine Chronometer relates the remarkable story of John Harrison's marine timekeepers which eventually won him a %20,000 reward offered by the British Government for any method of determin

Elevate your accessory game with the Mido - Donna - M0272084126600 - Baroncelli Chronometer Silicio for women. This automatic watch features a white dial and a stainless steel case with a diameter of 34 mm. With a water resistance of 3 ATM and a sapphire glass, this timepiece is both stylish and durable. The stainless steel strap and déployante closure add a touch of elegance.

239 pages, 300 illustrations, 2003. A book about the history of the Mercer firm from the early days of watchmaking in Liverpool to the large scale manufacture of chronometers in Clerkenwell and St. Albans. The book includes information on historic chronometers serviced by Mercer together with details of Mercer and Kullberg serial numbering. The repair, maintenance and rating of chronometers is given special attention. Now out of print and in demand. A fine copy with very good dust jacket (a few creases to lower edge).

Marine Chronometers provides a comprehensive history of this intriguing piece of navigational equipment, tracing its evolution from the early navigational aids into the precision instrument that helped shaped trade and economic development for 200 years. The workings of the device are explained in detail, along with highlights of some of the most significant makers and hints for maintenance. Topics covered include the problem of longitude, the early sea clocks, developments in France and England, the mechanism of the chronometer,  and caring for chronometers.

Unread book in perfect condition.

This book is a comprehensive treatise on ships chronometers. There are 499 pages of scholarly research, profusely illustrated with photos, charts and original, easy-to-understand drawings. A must for the practical watchmaker and for every serious student of these remarkable timepieces. Printed on glossy, heavy stock quality paper.

CHRONOMETERS - Marine and pocket chronometers, pocket watches with tourbillons or carousels form, in the large family of clocks, a small group of very precisely running timepieces with little sensitivity to external influences, such as variations in temperature. In the text, the author takes up the fascinating development and history of the chronometer, portrays the most important manufactures in short biographies, and reports on the great voyages of discovery in the 18th Century that proved the utility of the chronometer as a navigational instrument. The illustration section, divided into five sections on the basis of historical and technical standpoints, portays some 350 items in the antique trade and at auctions or seen in private collections, with special emphasis placed on illustrations of their movements.

This book, profusely illustrated in colour, takes the non-specialist reader through the detailed structure of the marine chronometer and explains its principles. It then guides the reader through the disassembly, cleaning, oiling and reassembly of marine chronometers, their rating, and preparation for transport, finishing with a substantial chapter on the evolution of the modern instrument. Some prominence is given to early French horolgists, who are often neglected in English language texts. There is no other book quite like it and, as clockmakers with actual experience of working on chronometers become rarer, this book will be of interest to collectors, horologists, curators and indeed anyone with an interest in the technology of time and navigation.

CHRONOMETERS - Marine and pocket chronometers, pocket watches with tourbillons or carousels form, in the large family of clocks, a small group of very precisely running timepieces with little sensitivity to external influences, such as variations in temperature. In the text, the author takes up the fascinating development and history of the chronometer, portrays the most important manufactures in short biographies, and reports on the great voyages of discovery in the 18th Century that proved the utility of the chronometer as a navigational instrument. The illustration section, divided into five sections on the basis of historical and technical standpoints, portays some 350 items in the antique trade and at auctions or seen in private collections, with special emphasis placed on illustrations of their movements.

This book is bound in red boards with bright gilt letters + design on the spine. There is light wear on the spine tips & cover corners. The contents are clean & unmarked, the binding is tight. The dust jacket has very, very light wear on the spine tips & cover corners. This book weighs over 2 kilos so extra postage may be required.

The book is bound in burgundy boards & is clean, bright & unmarked. The dust jacket has light wear on the spine tips & cover corners. This book weighs over 1 kilo so extra postage may be required.

The complete description of over 150 chronometers (including the famous Mudge "Green" as well as chronometers by Arnold, Earnshaw, Berthoud and other famous makers) with an introductory 50-page historical "Chronometrical Chronology," illustrated glossary, full bibliography and index. This is a reference work of incomparable value. (487 illustrations (249 b/w, 142 full color).

The complete description of over 150 chronometers (including the famous Mudge "Green" as well as chronometers by Arnold, Earnshaw, Berthoud and other famous makers) with an introductory 50-page historical "Chronometrical Chronology," illustrated glossary, full bibliography and index. This is a reference work of incomparable value. (487 illustrations (249 b/w, 142 full color).