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The Index — Vintage watches, decoded.References, dials and variants up to 2000

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Seiko Chronograph 6139-6012 · The Index

Brands
Seiko
Chronograph
6139-6012

Chronograph 6139-6012

c. 1970–c. 1975

Years estimated from 12 dated marketplace listings (5th–95th percentile); seller-stated, unverified.

Variants

No variants documented yet.

Reference specifications

Brand: Seiko
Model: Chronograph
Reference: 6139-6012
Production: c. 1970–c. 1975
Case material: Stainless steel

Specs shared by all variants. Variant pages show where a variant differs.

All Chronograph references

Previous reference6139-6005

Next reference6139-8020