Light diffusing ring for wristwatch

A light diffusing ring for positioning in a wristwatch immediately about the circumference of a time display face thereof and under a transparent cover to illuminate said face, said ring being constructed of light transmitting material, said ring having top and bottom parallel walls and an inner side wall, an elongated cavity formed in an outer side wall of said ring and extending at least in one quarter of the circumference of said ring, said cavity having a cross-sectional dimension to receive a lamp in close fit therein, said lamp having end terminals disposed over an outside side wall of said lamp adjacent opposed ends thereof, means to hold said terminals in position in said channel with said terminals in friction electrical contact with battery circuit contacts providing a voltage across said lamp to illuminate same for transmitting light along said ring to reflect and illuminate said time display face.