Black stainless steel case with a black stainless steel bracelet. Fixed bezel. Black dial with luminous hands and index hour markers. Date display appears at the 3 o'clock position. Eco-drive movement. Scratch resistant mineral crystal. Case diameter: 31 mm. Case thickness: 8 mm. Hidden push button deployment clasp. Water resistant at 30 meters / 100 feet. Functions: hours, minutes, seconds, calendar. Citizen Eco-Drive 180 Mens Watch BM6555-54E.