Omega Seamaster Cosmic 2000 watch 166.128 Jumbo Vintage 1973

SPECIFICATION

Reference : Seamaster Cosmic 2000 166.128
Movement : Calibre 1012
Age : circa 1973
Case Size : 38mm
Case Thickness : 11mm
Lug to Lug : 45mm
Lugs : 20mm
Condition : used Omega watch
Box & Papers : No
Case Material : Stainless Steel
Warranty : 12-Months Warranty

POINTS OF MENTION

• In great pre-owned condition, with some wear from use
  
• Case and bezel have light scratches and marks
  
• Omega signed crown
• Fully serviced movement
  
• Paired with its original signed stainless steel bracelet 676 that fits up to a 7 1/2 inch wrist approx.

THE WATCH

Released in the early 1970s, the Omega Seamaster Cosmic 2000 ref. 166.128 is a distinctive piece of Omega’s experimental era, blending bold design with innovative engineering. At 38mm, it was considered a “jumbo” case for its time—offering modern wrist presence well ahead of the curve. What truly sets it apart, though, is its unique double-case construction. Omega designed this model with a sealed inner movement container, sometimes called a “tub,” which fits inside an outer case shell. This monocoque-style build provided enhanced protection against dust and moisture, and while it offered better water resistance, it also made servicing more challenging—adding a layer of intrigue for today’s collectors and watchmakers alike.

A BIT OF TRIVIA

From Omega’s perspective, the Cosmic 2000 line was an exercise in design-forward innovation, meant to reflect the brand’s space-age ambitions. It married sporty function with a futuristic aesthetic, featuring the reliable Caliber 1012 movement with quick-set date. Though it doesn’t get the same spotlight as the Seamaster 300 or Diver 300M, the ref. 166.128 holds a cult following among vintage enthusiasts who appreciate its bold silhouette, clever case architecture, and the adventurous spirit it captured during Omega’s push into modern watchmaking. It remains a quietly important piece in Omega’s broader story—bridging the brand’s legacy of technical excellence with the daring design language of the 1970s.

OUR THOUGHTS

The Omega Seamaster Cosmic 2000 166.128 is a true trailblazer—combining bold, ahead-of-its-time design with innovative engineering. Sporting a larger, modern-sized case for the 1970s and a sealed, service-challenging construction, it’s powered by the advanced Caliber 1012. Loved both for its dependable performance and its distinctive cosmic-era style, this watch has earned a dedicated following among vintage enthusiasts.