Using just the power of light, the Astron GPS Solar Dual Time connects to the GPS network and tells time with atomic clock precision, adjusting at the touch of a button to your time zone. Now, with the new Dual-Time caliber, you can read not only the time where you are, but also the time in your home time zone on a simple 12 hour sub-dial with a separate AM/PM indicator.
In addition, the day of the week is displayed in a retrograde display at the 2 o’clock position,  with the date at the 4 o’clock position. The date is correct every day until February 28, 2100, thanks to Astron’s Perpetual Calendar and the operation of the watch is made simple by the electronic setting function in the crown.