Citizen Men's BL5435-58E "Perpetual" Eco-Drive Black Stainless Steel Watch Embrace the effortless sophistication that comes with this Citizen Eco-Drive watch, whose cool black stainless steel and durable construction make it an ideal everyday timepiece. Eco-Drive Japanese Quartz movement charges in natural or indoor light while durable mineral crystal protects the dial. Features alarm, 12- and 24-hour time, perpetual calendar, date window at four o'clock position Water-resistant to 200 m (660 feet)