Another of the Early American Dollar Wathes was mfg. by the Ansonia Watch Co. of Brooklyn NY , owned by the Ansonia Clock Co of Connecticut. Ansonia produced over 10,000,000 Inexpensive Dollar watches between 1896-1929 when all the machinery from the factory was sold to a Russian investor in 1930. This one was housed in what some called a " Boy Proof" case. There was a snap on back cover over the screws that hold the mvt in the one piece case, with a snap on bezel and beveled glass crystal.Note that the stem was integral to the case and the movement lifted out, also a very easily removeable mainspring barrel for easy replacement.
This watch was Model #1