SEIKO Astron SBXY033 Solar Pure titanium watchProduct Highlights Featuring a case silhouette with graceful curves and a slim bezel, the design of the "Quartz Astron" collection is characterized by a three dimensional shape with modern interpretations and flawless finishes. Product Description This "Solar Radio" model receives standard radio waves transmitted from the cesium atomic clock to ensure high precision timekeeping. It converts light energy into electrical energy to power its movement.