Fecit Benedict & Burnham MFG'Co, Waterbury Conn. USA
It is a pocket-watch with Tourbillon. Produced around the year 1870. The design is exceptionally innovative. The first Tourbillon watch whose cage revolves in the center of the watch. One of the first watches, which is predominantily machine-produced and designed for machine-work. All 56 individual parts, including its case, belong to the watch. At that time the design attracted watchmakers.
Many recognized, that the industralisation wasn't to stop.
The driving of this watch runs through the barrel-arbor. That was just as novel at the time and is probably unique until today.