A timer indicator or chronograph is described. The chronograph functions
according to chromatographic principles to develop a perceptible visual
image or pattern on an indicator panel or display area, which serves as a
means to monitor the relative amount of time that elapses. The
chronograph includes a self-contained reservoir for an activating agent,
which once activated creates a mobile front that traverses the indicator
panel substrate from the reservoir to a distal end at a predetermined
rate. The chronograph may be used as a stand-alone device or may be
incorporated as part of various articles or products, for instance, as
either a training aid or as a dryness indicator. Methods for using and
making the chronograph are also described.