handcuff vs watchband

handcuff

noun
  • One ring of a locking fetter for the hand or one pair. 

verb
  • To apply handcuffs to 

  • to restrain or restrict. 

watchband

noun
  • a band of leather, metal etc that fastens a wristwatch to the wrist; a watchstrap 

How often have the words handcuff and watchband occurred in a corpus of books? (source: Google Ngram Viewer )