Seiko Astron Seiko Astron's first all-titanium case has a structure that is water resistant to 20 atmospheres, and when combined with a large push-button crown shape that is easy to operate without bare hands, it demonstrates reliability even when used in tough scenes. To do. The upper surface of the foot, which has a large volume, has a streak finish, and the contrast with the mirror surface applied everywhere is beautiful, realizing a new sports design. In addition, the dial is filled with Lumibright, which has high visibility at night, in all indexes, and the simple dial design that clarifies the time display, which is the original role of the watch, ensures visibility that is not affected by the environment. increase.