Seiko commemorates its 145th anniversary with the revamped Astron GPS Solar Dual-Time Chronograph series

A little over two years ago, Seiko introduced the first Astron GPS Solar Dual-Time Chronographs. Following that, the brand gradually launched slightly updated versions featuring new materials and colors. For its 145th anniversary, Seiko revamped its Astron GPS Solar Dual-Time Chronographs. With a new case and caliber, the series gets a proper update. The brand introduces four new models. The Seiko Astron GPS Solar Dual-Time Chronographs HAB001, HAB002, and HAB003 are regular additions to the lineup, and the fourth is the 145th-anniversary limited-edition HAB004. We had a chance to go hands-on with all four.

Fans of the Seiko Astron GPS Solar Dual-Time Chronograph series will immediately notice several changes. The first and most important is a new case design. But if you know the Astron line, you will also recognize similarities with previous releases . Therefore, the new case is a logical step forward.…