Seiko astron gps solar dual time titanium the seiko astron revolution continues with this breathtaking piece from the infamous japanese watch making company laced with luxury yet elegantly done the gps solar dual time is the globe trotters number one choice in companionship the futuristic design of its titanium case with super hard coating makes for a perfect blank canvas of which a unique expression of sophisticated technological genius brings the watch to life a cold steel blue hue coats