In my reading about watches I learned that the wrist watch was the product of war. Pocket watches were worn in elaborate straps to hold them on the wrist. Timing was critical and who had radios...let alone a mobile phone! One thing lead to another. It became customary to engrave the back of the watch one's name and service. A form of current day dog tags which were not mandated until 1916 by the US Army. The tradition continued, even after dog tags were introduced, to engrave the back of a watch with the details of the owner. All of this investigation and the discovery of my Grandfather's "very" engraved watch connected a few dots. When my mother gave me my "lifetime watch", she lamented the store would not engrave my watch. Makes me wonder how Joanne Woodward had "Drive Carefully - Me" on the back of her betrothed's watch?
The watch belonged to my Grandfather. My daughter now occasionally dawns this watch with a tired alligator band for nice occasions. I recall with some humor and dismay that she announced the watch was "broken" because it would not run. That was rectified once I explained to her how to wind a watch. Imagine!
As for the watch itself, not much is known. Google searches have not yielded any specific details for this novice watch collector. Girard Perregaux was a quality Swiss watch maker unlike Rolex which contracted others to make their watches of the same era.
A new alligator band would freshen up this watch. It is too small for a man to wear today and looks best on a woman. Tastes have changed. Perhaps someday it will be worn with family pride.
Better photos to come, but for now, this is a start.