The ornamental design for a watertightaccessorycontainer, as shown and described.
FIG. 1 is a right side perspective view of a watertight accessory
container, showing my new design;
FIG. 2 is a left side perspective view; and
FIG. 3 is a left side elevational view, the opposite side being a mirror
image thereof.
The side opposite that shown in FIG. 3 is identical thereto.
The design is characterized by the specifically configured retaining clip
in combination with the particular bifurcated tube, all as best
illustrated in FIGS. 1 and 2.