Inspired by the beautiful oceans that unite the world, the watches of Citizen's UNITE with BLUE series join the colours of the seven seas on one 100% recycled polycarbonate dial. Highlighting Citizen's commitment to sustainability, the series now includes models from the Promaster Dive, CITIZEN xC, Attesa, and Sport Luxury lines.This new limited-edition model comes as part of the dive-ready Promaster collection, marking a unique take on the professional-grade style and performance. The robust 46mm silver-tone stainless steel exterior ensures up to 300 metres of water resistance, making use of a 4 o'clock screw-down crown placement and an easy-grip bezel executed in black for an incredibly bold aesthetic. Hidden lugs connect to a strap made from BENEBiOL™ PU, which includes plant-based materials, securing the timepiece to the wrist. The highly legible dial is brought to life through pigment-free ink that uses light – the same light that powers the Eco-Drive technology within – to reflect off the surface of the ink microstructures and create an array of aquatic shades. Functions include time, date, and with a movement requiring exposure to adequate light to then run for 365 days on a full charge, without ever needing a battery. Calibre E365. Limited to 4,500 unnumbered pieces worldwide. Show Less