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

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Omega Seamaster 2990-1 · The Index

Brands
Omega
Seamaster
2990-1

Seamaster 2990-1

c. 1956–c. 19611 variant

Years estimated from 19 dated marketplace listings (5th–95th percentile); seller-stated, unverified.

Omega 2990-1 — Ranchero and Seamaster Double-Signed Dial. Photographed dealer specimen. Hands were color-matched; not evidence of untouched original lume. Documented example: circa 1958. Production span has not been established. · Photo: Lunar Oyster · © Lunar Oyster; permission not recorded · Source: https://lunaroyster.com/product/1958-omega-seamaster-ranchero-2990-1-double-signed-2/

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Variants over time

Production years have not been recorded for these variants.

Variants

Ranchero and Seamaster Double-Signed DialUndated
Dealer describes both model names on one radium dial, calibre 267 and an internally stamped 2990-1 caseback.

Reference specifications

Brand: Omega
Model: Seamaster
Reference: 2990-1
Category: Diver
Production: c. 1956–c. 1961
Case material: Stainless steel
Movement: Manual winding

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

All Seamaster references

Previous reference2937-1

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