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Omega Seamaster 145.006 chronograph cal 321 chronograph

Dark radial

Omega logo

Omega Seamaster chronographRef. 145.006-66

In 1966, if you stepped into an Omega store seeking a modern black sporty chronograph, your options were essentially the Speedmaster or Seamaster. Other chronographs of the time tended to sport a more classic aesthetic.

Quick facts

Omega website

Brand: Omega
Model: Seamaster
Reference: 145.006
Year: 1966
Case: Stainless steel, 38mm, 13mm
Caliber: Omega 321, manual wound

What about it

Unique radial subdials and the vibrant orange chronograph hand gives it a unique edge among its peers.

The Omega Seamaster collection dates back to 1947, offering a wide range of models over the years. In the late 1960s, Omega shifted towards a sportier design style and didn't introduce colorful dials on their cushion-type chronographs until the early 1970s. Models like the 145.029 and 145.020, which came out in the early '70s, stood out for their more relaxed and creative dial designs. To give the Seamaster a sporty "racing" flair, Omega added a bold orange chronograph seconds hand to three variations: black, silver, and reverse panda. The 18k gold version featured a black hand, while an extremely rare racing model, almost at the prototype stage, came with a white chronograph seconds hand. This variation was particularly unique with red hour and minute hands.

From 1966-1968 this reference featured legendary caliber 321.
These variations with black dials are still significantly undervalued.

Research thread on Omegaforums

Diameter icon

38

Diametermm

Lug width icon

20

Lug widthmm

Frequency icon

18000

Frequencyvph

Power reserve icon

44

Power h

Crystal icon

plastic

Crystal

Seamaster 145.006
6 variations

Stainless steel case

  • Silver radial dial
  • Black radial dial (observed variations : Tachymètre / Pulsomètre 30)
  • Reverse panda radial dial (observed variations : Applied Ω logo / Painted Ω logo)
  • Exotic dial

Solid yellow gold case

  • Yellow gold radial dial
  • Silver soleil radial dial with gold applied logo and indexes
Omega Seamaster 145.006
Omega Seamaster 145.006
Omega Seamaster 145.006 chronograph

Caliber 321

The basis of the Omega caliber 320 is the Lemania 2310 movement and it was launched in 1942. The partnership between Lemania and Omega led to the development of the caliber 321, a three-register variation. With its compact 27mm size, it's well-suited for use in smaller chronographs under 35mm in diameter. The movement's robustness, performance, and aesthetic appeal have contributed greatly to making the Lemania 2310 one of the most important chronograph calibers in watchmaking history.

These are current models of Omega Speedmaster with caliber 321.

Omega Seamaster 145.006 chronograph
Omega Seamaster 145.006 chronograph Omega Seamaster 145.006 chronograph Omega Seamaster 145.006 chronograph Omega Seamaster 145.006 chronograph

Variations

Market

Availability: Average
Ca 10-15 watches on sale

Pricing: 3,000 - 6,000 €
(Dec 2023)

Buy from Chrono24

Chrono24

References

Nothing much written about these. But, I have found few articles about the venerable Omega caliber 321.

Hairspring article about Seamaster

Millenary Watches article about cal 321

Revolution article

A Collected Man article

Related

Straps

Some recommended strap options for this watch. External links to their webshops.