German gilt watch mounted into a pocket knife Circa 1700

Unsigned watch incorporated in a gilt and brass knife.
–
A museum quality and rare German watch mounted in a knife so-called, a probably unique knife, circa 1700. The knife case is made of gilt and engraved brass with a steel blade. Both sides of the handle have a scrolling pattern, and the edges are engraved with a geometric pattern. A watch is fitted in the middle of the handle with a polished hinged and glazed bezel. The movement is shaped brass and has a full plate with fusee and chain, a four-wheel train, a verge escapement, a three-arm plain brass balance, and a flat balance spring. The watch’s silver dial features radial Roman numerals in champlevé style, an inner quarter-hour ring, a centre with a chased flower, and a blued steel beetle hand.
–
Length: Folded 105 mm
–
Signed:  No name
–
The movement starts ticking. Overall, it is in good condition, with movement restorations. The watch has been known for a long time and is probably the only watch of this kind from around 1700 that has survived.
–
Instruments that combine mechanical watches with practical tools are uncommon, especially those that date back to the 17th century or earlier. However, the Dresden collection possesses a watch mounted in a sword pommel that dates back to the 16th century. Additionally, at least one powder flask still exists and contains a watch.