CITIZEN WATCHES Promaster Dive “Ecozilla”. Explore the deepest depths with CITIZEN WATCHES’s newest Promaster Dive with water resistance up to 300 metres. This iconic men’s high-performance dive watch features a silver-tone stainless steel case, a dark blue 3-hand dial with luminous hands and markers for superior legibility, and a durable, yellow polyurethane strap for lightweight comfort. Sustainably powered by light with Eco-Drive technology and never needs a battery, this ultimate dive watch comes in an exclusive scuba tank-inspired box for the serious diver and collector. Case Size: 48MM. WR300.