Citizen Men's BJ2105-51E Eco-Drive Promaster Carbon Depth Meter Metric Dive Watch Light powered eco-drive Japanese-quartz movement; charges in natural sunlight or indoor light Durable, hardened mineral crystal; unidirectional bezel made from carbon fiber (graphite fiber)--a material that is lighter than titanium, and stronger than steel Promaster Carbon Chronograph with depth meter; stainless-steel case and bracelet Depth display up to 60 meters using inner chapter ring; black dial; luminous hands and markers; date function at three o'clock Water resistant to 660 feet (200 M): suitable for recreational scuba diving