Seiko’s GPS-linked Astron chronograph now comes in titanium with a crystal bezel. a close up of the dial, bezel and crown of a steel Seiko Astron chronograph Every product is carefully selected ...

Seiko’s GPS-linked Astron chronograph now comes in titanium with a crystal bezel. Every product is carefully selected by our editors. If you buy from a link, we may earn a commission. Learn more There ...