watchband

[woch-band] /ˈwɒtʃˌbænd/
noun
1.
a leather, metal, fabric, or plastic bracelet or strap attached to a wrist watch to hold it on the wrist.
Origin
1945-50, Americanism; watch + band2
Examples from the web for watchband
  • Limit the amount of jewelry you wear on your fingers and forearms to a plain wedding band, medical bracelet or plain watchband.
British Dictionary definitions for watchband

watchband

/ˈwɒtʃˌbænd/
noun
1.
(US & Canadian, Austral) a strap of leather, cloth, etc, attached to a watch for fastening it around the wrist Also called (in Britain and other countries) watchstrap