My first pocket watch was also a Westclox Pocket Dax which I took to pieces in class, in Miss Byers room, in grade 1, in 1946.
@JwRosenthal ,
Tanis could be a Unitas 6445 or the Eta equivalent, or it could be a clone. I see stampings under the balance wheel, but can鈥檛 make them out. Mikrolisk has this to say about the Tanis name. And here is a picture of the Unitas 6445 movement.
Your English pair cased watch appears to be an English lever, fusee, unfortunately with an anonymous movement. The case was hallmarked in Chester (England), in (it appears to be) 1842-43. The case makers mark could be T.H, in which case it could have been made by Thomas Howl, 32 Norman鈥檚 Buildings, St. Luke鈥檚. It could be I.H in which case it might be by John Harris, 6 York St., Butts, Coventry. Both makers were active at about the time the watch was hallmarked. Information courtesy of Phillip Priestley鈥檚 excellent volume on English watch case makers.