The radio sync solar powered dual time Coutura SSG020 chronograph is just the latest innovative advanced environmentally-friendly technology by Seiko. Just as the name indicates, the timepiece easily and automatically receives radio signals to precisely adjust the time and calendar functions. The two-tone stainless steel 44.5mm case has a world time function with 25 time-zones of several major international cities indicated on the aluminum bezel. A blue chevron patterned dial with LumiBright stick markers and sword style hands is easily legible with a center dual time 24 hour sub-dial and small seconds. Equipped with a retrograde day calendar display and date with power indicator function and radio reception signal strength. Powered by Seiko's own in-house Eco-drive movement caliber 8B63, uses ambient or direct sunlight. Once fully charged your timepiece has a 6-month power reserve (no need for a battery) for low easy maintenance. With a 100 meter water resistance, the screw down stainless steel cabochon crown is protected by a crown guard and accented with gold colored chrono pushers on each side. The screwed on polished stainless steel case back has black glass case cover signed with the Seiko name and fitted with a sapphire crystal front. The two-tone stainless steel polished and brushed tapered chevron style bracelet has a twin push button tri-fold safety clasp to keep your timepiece in place. The Coutura Collection is just the latest innovation from the tried and true brand of Seiko. Modern technology, and stylish perfection meet in one watch with the Coutura Radio Sync Solar collection for men.