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Seiko Astron

1969 Astron 35SQ was the world's first commercially available quartz wristwatch; revived in 2012 as the GPS Solar line that syncs time zones from satellites.

4 references

ReferenceVariantYearsDialSize
35SQ original quartz Astron1969–1969silver36 mm
SAST001 Astron GPS Solar debut limited edition2012–2012Not recorded47 mm
SSE003J1 GPS Solar dual-time2015–2019black44.6 mm
SSH109J1 Astron 50th Anniversary Origin2019–2019blue42.9 mm

Unsent wear entries