FIG. 1 is a perspective view of a portion of a watch housing in accordance with our invention;

FIG. 2 is a front view of the portion of a watch housing of FIG. 1;

FIG. 3 is a right side view of the portion of a watch housing of FIG. 1;

FIG. 4 is a top view of the portion of a watch housing of FIG. 1; and,

FIG. 5 is a bottom view of the portion of a watch housing of FIG. 1.

The broken lines show the watch band and remainder of the watch casing for illustrative purposes only and form no part of the claimed design.