ince its creation in 2012, Astron has changed the way that many people measure, perceive and relate to time. Now, an entirely new calibre, 5X, offers the most advanced functionality ever and is the smallest and thinnest GPS solar watch ever built*.

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GPS Solar Dual-Time 5X53 SSH003J1
GPS-controlled time and timezone adjustment. Dual-time with AM/PM indication. Perpetual calendar correct to the year 2100. Automatic DST adjustment function. High-speed time zone adjustment. Time transfer function. Signal reception result indication. World time function (39 time zones). Power save function. Diameter: 42.9mm. Thickness: 12.2mm

To enhance the speed and quality of the GPS connection, every component in the Astron GPS module has been re-engineered. Furthermore, with its high-speed time zone adjustment, the operation of the 5X calibre is faster and more intuitive than ever. For example, only three seconds are needed to advance the 14 hours that separate the time in Tokyo and New York, thanks to a system that moves the hour, minute, and seconds hands independently.

The new 5X calibre makes automatic adjustments to Daylight Saving Time, and the time transfer function allows the wearer to switch the display of home and destination times between the main and the sub-dials.

The new Astron 5X series adjusts at the touch of a button to your time zone** by connecting up to twice a day to the GPS satellite network and. As it takes all the energy it needs from light alone, it never needs a battery change and yet delivers the astonishing precision of an atomic clock. It is the perfect timepiece for the global traveller.

* Seiko research, September, 2018

** If there are changes in the region/time zone, manual time zone selection may be required.