Seiko-Astron-GPS-Chronograph-SSE005-1 | AZ Fine Time Blog
Seiko - Astron GPS Solar Executive Line. The well-defined dial is the signature of Astron, and longer hands and markers increase the legibility. http://www.seiko-astron.com/executive/ Ref. SSE129 | Facebook
Seiko - Video. Astron GPS Solar, new design - Innovation and technology - WorldTempus