also: ワッチキャップ
watch cap; beanie
A close-fitting knitted cap, often worn in cold weather or as part of a casual outfit. The term is a direct loan from English.
In winter, I wear a watch cap to keep my ears warm.
He was wearing a black watch cap pulled down low.
Variant with interpunct and simplified 'ワ'.
Borrowed from English 'watch cap', referring to the knitted cap traditionally worn by sailors on watch duty.