Seiko Astron SSH021 GPS Solar Quartz Dual Time Stainless Steel Black Dial prospex the other featuring measurement scales

the other featuring measurement scales and an exhibition movement

Travel time (42 cities and UTC

The case and bezel have mirror finishes that enhance the texture of the metal

Lug width: 20 mm

Seiko Astron SSH021 GPS Solar Quartz Dual Time Stainless Steel Black Dial prospex the other featuring measurement scalesToday, 50 years after the Seiko Quartz Astron ushered in the quartz revolution, the enduring popularity, ubiquity and versatility of this remarkable technology have all been proven beyond any expectation. The Quartz Astron changed the way the world told time, astonishing people with its accuracy of +5 to 5 seconds per month. It also shaped the whole future of the electronics industry as several of its inventions, including the tuning fork shaped