This is a sundial watch made in southern Germany around 1570. It is a drum watch with what is known as a "stackfreed." It features an hour-striking clock-watch with a cover, and has movement with straight-line foliate and power regulation by stackfreed. The watch is stamped "HK," for Hans Koch, and its inside cover has a sundial and a compass. It is signed and dated "MP/1592" for Markus Purman, who died in 1619.