Hamilton antique Pocket Watch

This was my Grandmother who was a Sadlers' Grandfather Mulqueen's pocket watch and it still works and keeps perfect time! It has a marking inside on one side that says Champion that arches over a symbolic lady I believe she holds up a shield and has a knife in her right hand, then underneath is the numbers 2755453. The outside of both sides has a design etched in it but both sides are quite worn....on the top of the face of the watch it has a pretty script that reads "Irving LoKnapps" and below that it reads " Harley, Iowa" the crystal is intack. the face is impeccable and has the second hand that also works and along the outside light red seconds, like 05, 10, 15, 20, etc, etc......I am just curious what it is worth and who could possibly know..I also would like to know more about it.