The Citizen Eco-Drive BL5405-59E Perpetual Calendar Men's Watch is bold, daring, and offers a sporty edge that every man will enjoy showing off. Featuring a 12 and 24-hour time display, alarm, and swift rotating inner ring, there is a certain elegance that needs no announcement. The brushed black, stainless steel band combined with the matching case delivers a sleek look. Generously sized, this timepiece has a case that measures a full 48 millimeters in diameter. There is a water resistance rating of 100 which provides protection for the watch in depths of water of 333 feet. The watch does include a mineral crystal, which is scratch-resistant.