Auch in Aehringen

A rare South German pocket watch with regulator dial Case No. a 070, Dimensions 55 mm, circa 1810, Weight 94 g, Origin Deutschland Case: Silver, case maker's punch mark "CFA". Dial: Enamel, eccentric chapter ring with radial Roman hours, unusual 108 division of the seconds scale. Movm.: Full plate movement, chain/fusee, lateral balance stop lever for precise adjustment of the watch, cylinder escapement, five-arm brass balance, open worked and engraved, large central balance bridge with regulator scale. The former Landrock collection owned a pocket watch signed "Auch in Oehringen" (HWV 5.82). The watch has been proven to be made by Johann Georg Auch (1766-1838), the brother of the famous Johann Jacob Auch (1765-1842), a student of Hahn. Like this watch it has distinctive features that are also present in Hahn’s pocket watches. The gilt brass movement has a very large balance with brass wheel and a cylinder escapement with rounded pallet face of the cylinder wheel teeth. The elaborate balance bridge is exquisitely ornamented. The watch features a stop function for the balance, which can be adjusted with a lateral lever. The scaling of the seconds display on the dial is unusual in steps of 108. Very little is known about Johann Georg Auch’s work for Philipp Matthäus Hahn. Johann Georg Auch called himself a watchmaker and after working for Hahn, he worked for his brother Johann Jacob in Ludwigsburg. In 1794 he lived and worked as mechanic and watchmaker in Ludwigsburg Circa 1800 Johann Georg moved to Öhringen, where he held a position as mechanic to the court of the Prince of Hohenlohe-Oehringen. Johann Georg Auch died in Öhringen in 1838. Case: very good. Dial: very good, hairlines, chipped. Movm.: very good, capable of running, cleaning recommended.