The words Patent Chronograph are the only words on the watch. They are located on the dial. This is a large watch measuring 57mm across (not including the stem and bow). It is key wind and key set and has the cylinder type escapement. The interesting thing about it is a sliding button on the outside of the case that moves a lever inside the watch. The lever rubs against the balance wheel and stops the watch. I believe this is called a "stop works" mechanism. The dial has Roman Numeral hour markers and small numbers in increments of 25 (25, 50, 75, ... 300) on the outside edge. The watch has a center sweep seconds hand.