Important German silver astronomical cylinder watch Circa 1800

Gold complicated watch by Christian Gottfried Hahn
–
A German pocket watch with moon phase, date display, and small seconds in museum quality, circa 1800. This watch features a polished silver case and a white enamel dial with black Arabic numerals indicating the hours and minutes. The dial also displays three sub-dials with red lettering for showing the moon phases, date, and seconds. It has a full plate movement, an open barrel, a cylinder escapement, a flat steel balance, and a pierced balance bridge with a regulating scale.
–
Diameter: 59 mm
–
Weight: 115 g
–
Signed: Christian Gottfried Hahn
–
The Hahn brothers, Christian Gottfried (born in 1769) and Christoph Matthäus (1767–1833), along with Johann Georg and Immanuel, worked in their father Philipp Matthäus Hahn’s workshop in Onstmettingen, Kornwestheim, and Echterdingen. Christian Gottfried and Christoph Matthäus later became “Hofmechanikus” in Stuttgart. Christian Gottfried was also recognised in Berlin and North America. In the two-volume work Philipp Matthäus Hahn 1739–1790: Part I Catalogue, Part II Essays, published by the Württemberg State Museum in Stuttgart and Christian Väterlein in 1989, Part I of the catalogue features a watch with a similar dial on page 505, which originated from Philipp Matthäus Hahn and was crafted in 1775.