|Dugena mantel clock|
Dugena is a German retail company that likely contracted out the cases and also contracted with various German movement manufacturers and then stamped their name on the product. Some have Junghans movements, some have Hermle and Mauthe perhaps and so on.
This particular one is a Hermle 2-train floating balance movement known popularly as a "Bim-Bam" clock. Three hammer Bim-Bam clocks make a distinctive 1-2 sound on the hour and 1/2 hour. Floating balance movements were popular from the 1950s onward. FHS (or Hermle) is stamped on the front plate and Hermle makes mechanical movements to this day.
|Spring barrels - partially torn down|
|second wheel needs to stay on the plate|
|time and strike spring barrels|
|Hermle movement - front view with snail taken off|