There are leather button covers, openings for the camera and other features, and a slight bezel around the screen. (digitaltrends.com)
Faux leather button front skirt: H&M (HERE) Denim button front skirt: H&M (HERE)[english] I'm finally hopping on the button - front - skirt bandwagon, which actually was about time. (redreidinghood.com)
Courreges, circa 1970's red wool - cashmere, leather button front skirt with side pocket and fully lined. (1stdibs.com)