The citizen l women's watch is part of the unite with blue series, inspired by the beautiful oceans that unite the world. The pigment-free ink on the dial uses light – the same light that powers the eco-drive technology within – to reflect off the surface of the ink microstructures and create an array of aquatic shades. 29. 5mm stainless steel case; sapphire crystal the 100% recycled polycarbonate dial with sparkling markers reflects the colors of the seven seas eco-drive is powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries stainless steel bracelet with push-button deployment clasp 50-meter water resistance caliber e031 the unite with blue series highlights citizen's commitment to sustainability