Limited edition of 3000 pieces seiko astron watch gps solar dual time limited edition with an individual number engraved onto the back of each masterpiece the limited edition of just 3000 pieces bears more thanjustone unique feature showcased on a stunning mother of pearl dial this seiko solar watch absorbs all of its energy needed from daylight solely within the dial alone since the timepiece uses such little energy made from a ceramic and hard coated titanium case the beautifully natu