Astron GPS Solar

This 45mm SBXB147 wears a blue dial, setting it apart from the black-dialed and multi-colorway siblings around it, and ran from 2018 to 2022 at the later end of the family's timeline. It is built in titanium with a ceramic bezel, rated to 100m, and powered by the 8X53 GPS solar quartz caliber that…

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