Auch displayed a talent in mathematics at an early age; at eleven he was known to assist his teachers in the explanation of complicated mathematical problems. In addition to production of complicated astronomical watches he is also known to have made calculators; another skill he would have learnt from Hahn, who was known for his masterful calculations. Lorenz Julius Böckmann, head of the Physical Institute in Karlsruhe from 1764-1798, wrote an essay about Auch in 1790 and said that Auch could be considered one of the leaders in the development of the calculator. He noted that Auch's calculators were more precise, easier to use and more affordable.
For examples of Auch's Astronomical watches, see: Beyer Museum, Zurich; Württembergishches Landesmuseum, Stuttgart and Antiquorum Geneva, 14 October 1990, lot 394. For an illustration of the Auch in the Beyer Museum see Uhrenmuseum Beyer Zurich, Antike Uhren, pp. 84 & 85, Cat. No. 36 and the back cover. For a discussion of Jacob Auch and his work see, Alte Uhren, No.6, 1987, "Jacob Auch-ein Schüler von Philipp Matthäus Hahn."
For further information on other similar astronomical watches by Auch, see the exhibition catalogue, Ausstellungs Katalog Philipp Matthäus Hahn 1739-1790, Stuttgart, 1989, Table 22, and pp. 509-513.
Please call 1-800-555-5555 to order a print catalog for this sale.
Online Registration to Bid is Closed for this Sale. Would you like to watch the live sale?Watch Live Sale