Try posting your question over at www.watchtalkforums.info. It''s a forum full of nothing but watch geeks, or WIS''s, as they call themselves. (Watch Idiot Savant) I''m sure they''d love to see it and try their hands at identifying it.
what you have is an early military/explorer watch.The pocket watch style case shows its an early form and it is from the early turn of the 20th century(pre 1920s)the watch site WWW.watchuseek.com at the vintage watch section will have several people interested in helping you find out more about the watch!