This is a fabulous vintage pendant watch for your necklace which was made by the Sheffield Watch Company.
The piece features clear Lucite surrounding the gold toned numbers and case.
It measures 2 1/4" long by 1 1/4" wide.
VERY GOOD condition! It is currently not working...it was when I purchased it along with the other Sheffield watch pendant but now it will not keep time and doesn't want to wind.