Seiko — Astronomical Observatory Chronometer

Astronomical Observatory Chronometer 4520-8020

Produced 1970. Seiko Astronomical Observatory Chronometer 4520-8020 in the Seiko Astronomical Observatory Chronometer family, produced 1970. Specs, variants, and lineage in The Dial Atlas watch encyclopedia.

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Seiko Astronomical Observatory Chronometer 4520-8020
Reference4520-8020
BrandSeiko
FamilyAstronomical Observatory Chronometer
Produced1970
StatusDiscontinued

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