Citizen Watch Promaster Diver Eco Drive Mens CA0825-05A. From the Promaster collection, this ISO Compliant diving watch is the perfect blend of style and function. Water resistant to 200 metres, this watch is a must-have for your next diving adventure. Featuring a black polyurethane strap and black ion-plated case, one-way rotating elapsed time bezel, 1/5th second chronograph, 12/24 hour time, a screw-back case and screw-down crown and date display. This 44mm timepiece is completed with Eco-Drive technology, sustainably powered by any light and never needs a battery.