Citizen Eco-Drive Men's Promaster Analog-Digital Watch With Black Silicone Band (Model: JZ1065-13E) Round sports watch featuring black dial and red color pop accents at crown and tachymeter Eco-Drive is fueled by light so it never needs a battery 46 mm stainless steel case with mineral dial window Japanese quartz movement with analog-digital display Silicone band with buckle closure Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving.