Source : Webster's Revised Unabridged Dictionary (1913)

Wristband \Wrist"band\, n.
   The band of the sleeve of a shirt, or other garment, which
   covers the wrist.

Source : WordNet®

wristband
     n 1: band consisting of a part of a sleeve that covers the wrist
     2: a band of cloth or leather or metal links attached to a
        wristwatch and wrapped around the wrist [syn: {watchband},
         {watchstrap}, {watch bracelet}, {bracelet}]