The Seiko Astron SSH109J1 5X Dual-Time GPS Solar Chronograph Men Watch combines advanced satellite technology with a refined titanium design. Powered by the solar calibre 5X53, it automatically adjusts to your exact time zone via GPS signals and delivers accuracy of ±1 second every 100,000 years with daily updates. Featuring dual-time display, world time across 38 cities, a perpetual calendar accurate until 2100, and a power reserve indicator, it is built for global precision. The 42.7mm titanium case with super-hard coating, blue dial, and sapphire crystal ensure durability, while 100-meter water resistance makes it ideal for everyday wear.