18th Century Watchmaking
Quarter repeater, Welldon, London, circa 1735.
- A large map of the main watchmaking regions in Switzerland. See also Osterwald.
Berthoud and Auch: "How to Make a Verge Watch" (1763 and 1827)
- Detailed descriptions of 18th century watchmaking methods.
- Detailed explanations of making mainsprings, repeater springs and balance springs.
- A study of the correct forms for teeth and methods for the calculation of trains, including an appendix on English practices at the time.
- A description of the watch factory set up by Christin and Viala.
Christin: "Nouvelle Manufacture D'horlogerie, dans la Ville de Pfortzheim" (1771)
- The French description of the watch factory set up by Christin and Viala.
- A detailed explanation of how to make and repair quarter repeater mechanisms.
- A detailed explanation of how to make and repair quarter repeater mechanisms.
- Description of the inventions made by Hubert Sarton.
- Description of the inventions made by Hubert Sarton.
- Diagrams and descriptions of machinery designed by Japy.
Osterwald: "Description of the Mountains and Valleys of Neuchatel and Valangin" (1766)
- Diary of a trip in Switzerland with some references to watchmaking.
- Diary of a trip in Switzerland with some references to watchmaking.
Sarton: "Abridged Description of Several Pieces of Horology" (1789)
- Description of 9 horological and 2 other inventions.
Sarton: "Description Abregee de Plusieurs Pieces d'Horlogerie" (1789)
- Description of 9 horological and 2 other inventions.
- Another detailed description of 18th century watchmaking methods.
- A study of drunken fusees, fusees that can be wound both clockwise and anti-clockwise.
Watkins: "The Origins of Self-Winding Watches, 1773-1779", (Second Edition)
- A comprehensive, historical and technical study of the origins of automatic watches.
Watkins: "Philipe DuBois & Fils, Customers, Suppliers and Bankers, 1757 - 1824" (2014)
- A data base of people who dealt with Philipe DuBois. Available as a FileMaker Pro data base and as Excel files.
Watkins: "The Production of Japy in 1780, is this Now a Myth?" (2010)
- Short comment on the number of workers employed by Japy.
Illustration: Quarter repeater by Welldon, London, circa 1735.