This Astron solar-powered watch, themed "Solidity," reflects Seiko's innovative legacy since 1881. Beneath sapphire crystal, a textured white-silver dial with a vertical hairline finish sits within a sleek titanium case, featuring a super-hard coating for scratch resistance and a slim, angular design. Powered by the 5X83 solar GPS calibre, it offers a chronograph function measuring elapsed time to 1/20th of a second, accuracy of ±15 seconds per month, and a six-month power reserve. Rechargeable by any light source, it combines practicality with cutting-edge satellite synchronization. Seiko Astron: the worlds first GPS solar watch. Powered by the solar powered movement with 14 jewels and a power reserve of up to 6 months.Presented on a silver titanium bracelet .Scratch resistant sapphire crystal glass.42mm case width.100 metre water resistance.