There is no question that when it has came down to great watches, Citizen has shown to be one of the most dominant brands in watches. I absolutely have been so amazed with the styles and the strength of their definitive eco-drive watches. They've shown to be the best without the hastle of the battery. That works well with this skyhawk A-T watch. It runs completely on not just the sun and artifical light, but has a perpetual calendar as well, that runs brilliantly through radio waves and has the best in world time. It really delivers the best in watches, for anyone that wants a pilot-style watch with all the joy of a titanium band. It really is strong, sturdy and worth every penny. I absolutely love the brilliance of this watch, and it is easy to program, and runs simply with the strength of the wrist, and the drive of what Citizen can really do. I absolutely recommend this watch a whole lot.