The ornamental design for a face of timedisplaydevice, as shown and described.
FIG. 1 is a perspective view of the face of a time display device incorporating the invention of this application, the view showing in phantom lines a watch and watch strap which form no part of the invention of this application, but have been illustrated for purposes of illustrating a field of use of the invention;
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a perspective view of a second embodiment of the face of a time display device, the graphical indicia of which have been lined to indicate the color red;
FIG. 5 is a top plan view of the embodiment of FIG. 4; and,
FIG. 6 is a right side elevation of the embodiment of FIG. 4.
The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design.