Electronic ink is a proprietary material that is processed into a film for integration into electronic displays. Revolutionary in concept; electronic ink is a fusion of chemistry; physics and electronics to create this new material.Band Color : Black Silicone; Band Width : 30mm near case; 24mm near clasp/buckle; Bezel Color : Silver; Case : Silver + Rectangle-shaped; Case Finish : Satin + Stainless Steel; Case Thickness : 10mm; Case Width : 35mm; 35mm with crown; Clasp / Buckle : Strap Buckle; Dial : White + digital; Hand Color : Black; Movement : Other + quartz; Time Zones : Multiple; Water Resistance : 5 atm;