CST-01 E Ink watch is world's thinnest, pictures and hands-on - photo 1CST-01 E Ink watch is world's thinnest, pictures and hands-on - photo 2CST-01 E Ink watch is world's thinnest, pictures and hands-on - photo 3CST-01 E Ink watch is world's thinnest, pictures and hands-on - photo 4CST-01 E Ink watch is world's thinnest, pictures and hands-on - photo 5CST-01 E Ink watch is world's thinnest, pictures and hands-on - photo 6