60-hour time and strike. Balance wheel and pin-pallet escapement. Movement accessible through the back. Movement in bottom of case and release mechanism for mouse at the top.
Wood case has rhyme written on it, along with time painted directly on it. The very bottom of the case reads, "No. 912833/ Pat. Feb. 10, 1909." Wooden mouse moves up case and drops at one o'clock.
Label on back reads, "Dungan & Klump/Originators and Manufacturers/1208 Chestnut St., Philadelphia, PA U.S.A."