Astron GPS Solar

Spanning 2015 to 2019, the SSE045J1 is a 45 mm titanium-and-ceramic Astron rated to 100 m, running the 8X53 GPS solar quartz world-time caliber beating at 32,768 vph. It sits among the core world-time references of the family rather than the chronograph models. The dial came in Seiko's wide Astron…

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