Spring Drive U.F.A. Ushio 300 DiverA divers watch true to the ideals of Grand Seiko. Like every Grand Seiko watch, the new creation strikes a perfect balance between function and beauty. The new creations legibility, durability, and wearing comfort have been thoroughly considered and painstakingly engineered to ensure uncompromising performance in any environment. Commensurate attention has been given to every aspect of the watchs physical appearance.