watch key

1. 1.

   winder consisting of a key with a square hole; used for winding some watches

   Broaderwinder

Questions about watch key

What does watch key mean?

watch key means "winder consisting of a key with a square hole; used for winding some watches".

Is watch key a common word?

watch key is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.