The world's first GPS solar watch. By connecting to the GPS network,
the Astron adjusts at the touch of a button to your time zone, by taking
all the energy it needs from light alone, never needs a battery change.

The Astron 8X42 caliber features the classic big date window and the
roman numerals for the first time in any Astron design while shares all
the core characteristics of the hugely successful 8X calibers. The
Astron Big-Date adds a new note of relaxed elegance to the Astron
design.