Seiko Astron Men's Solar GPS Chronograph Watch

Seiko's GPS solar technology meets a full chronograph in the Seiko Astron Men's Solar GPS Chronograph Watch. The 43.3 mm titanium case is allergy-safe and weighs just 117 g, topped with a dual-curved sapphire crystal with super-clear coating.

The 5X83 calibre adjusts time zones and the time itself via GPS, with world time across 38 cities, a dual-time function, Daylight Saving Time and an in-flight mode that blocks signal reception. A chronograph times events up to 12 hours in 1/20 second increments, and a perpetual calendar runs to 28 February 2100. Fully charged, it operates for approximately six months, or around two years in power save mode, with a power reserve indicator to show where it stands. LumiBrite hands and indexes, 4,800 A/m magnetic resistance, a Smart Adjuster clasp and 10 bar water resistance complete it, with a 3-year international warranty.