FIG. 1 is a front and right perspective view of a watch strap in its use state, showing my new design;
FIG. 2 is a rear and right perspective view thereof in its use state;
FIG. 3 is a front, left and top perspective view of a watch strap showing my new design;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a left side view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The broken lines in FIGS. 1 and 2 depict environmental subject matter and form no part of the claimed design.