What is the value of Elgin National Watch Co picket watch movement 8125779?

Answer 1

My understanding is that a 15 jewel watch is not an "official" railroad watch. Elgin was probably playing off the railroad theme. You did not give the size or if the watch is open face or hunting case. I am guessing that the watch is open face. Value depends largely on whether the watch case is solid gold or if it is gold filled. I am guessing gold filled on a 15 jewel. If the case says "warranted" it is most likely gold filled. A 20 year case is 10k gold filled and a 25 year case is 14k gold filled. What I have seen sell in antique malls is $100-200 for gold filled and $300-500 if solid gold. I am not an authority on pocket watches.