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    5X Series

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    8X Series Dual-Time

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              • Astron
              • 5X Series

              5X Series

              The most advanced ever.
              The world’s first GPS solar watch takes things to the next level.

              News

              • 2018.10.12
                Press Release

                Caliber 5X powers our most advanced ever Astron GPS Solar collection.

              • 2018.3.22
                Baselworld Press Release

                Astron GPS Solar adds an executive sports series. Active wear for off-duty professionals.

              Features

              Photo of the dial of 5X Series

              5X Series Features

              More

              Lineup

              • Astron

                SSH019J1

                Men’s
              • Astron

                SSH021J1

                Men’s
              • Limited

                Astron

                SSH023J1

                Men’s
              • Astron

                SSH024J1

                Men’s
              • Astron

                SSH001J1

                Men’s
              • Astron

                SSH003J1

                Men’s
              • Astron

                SSH006J1

                Men’s
              • Limited

                Astron

                SSH007J1

                Men’s
              • Astron

                SSH009J1

                Men’s
              • Astron

                SSH011J1

                Men’s
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              ASTRON 5X Series | Astron | Brands | Seiko Watch Corporation