4-1/16" diameter Gold Roman Skeleton Clock Insert
features a clear view of its internal rotating gears. 
This unique clock insert has 2 chapter rings,
one for hour-minute and one for seconds.
Features a gold-tone bezel, clear plastic backplate, and glass lens.
With hands as shown in photo.
The back is enclosed to protect against dust.
Runs on 1 AAA battery (not included).
Holds into a 3-3/4" dia. hole with a rubber friction ring.
Overall Diameter: 4-1/16 inches.
Mounting Diameter: 3-3/4 inches
Mounting Depth: 1-31/64 inches