Meet the Prospex 'SUMO' GMT Diver's watch. The Seiko introduces it's first solar watch to adopt a GMT hand. This Prospex Diver's watch comes with a new calibre of 5K62 and is available for avid divers alike. The watch shape is affectionately named 'Sumo' by Seiko fans because of its size and shape and the 12 o'clock marker - it's a substantially strong looking timepiece. The Lumibrite colour on the 24-hour hand is high in visibility underwater and the light blue dial produces vibrant accents to the elegantly pressed pattern design. The 200 metre water resistance is paired with a stainless steel case and high power generation efficiency. Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.