The Omega Seamaster is Omega’s longest-running line, first introduced in 1948 in response to the Royal Navy’s need for reliable and robust timepieces during World War II. Originally designed for submariners, the Seamaster's construction was optimized to withstand extreme temperatures and pressures underwater. In 1955, diver Gordon McLean set a record-breaking depth of 62.5 meters (205 feet) wearing the Seamaster in Australia, solidifying its reputation for resilience and precision.

Among the diverse series of Seamaster watches, the Seamaster Cosmic stands out with its half-dress, half-casual vibe, thanks to its dial variations and distinctive case shape. The dial of the Omega Seamaster Cosmic often features bold, modern designs, including bi-color chapter rings and prominent indexes. Omega initially crafted the Seamaster Cosmic with "unishell" cases, which have fixed backs to enhance the watch's water resistance. This design meant the watch could only be serviced from the front and had a maximum water resistance of 30 meters. The unishell case also gives it a stronger wrist presence, featuring more edges and less curvature, lending it a more modern look. With a versatile waterproof case made by EPSA and dials rich in detail, the Seamaster Cosmic is a collection that brings joy to any vintage Omega enthusiast.
The watch we are offering today is a striking Omega Seamaster Cosmic 166.026 fitted with a black grey dial and crisp white outer ring — a captivating reverse panda configuration. The high-contrast layout delivers a bold, graphic presence that feels both vintage and surprisingly contemporary. The dial is in excellent condition with sharp, clean printing and no visible aging. This dial variant is especially sort after by collector.
The unishell case remains unpolished, retaining its original brushed surfaces and sharp edges for an authentic, well-preserved look. This example wears beautifully, offering a versatile retro-sporty aesthetic that pairs effortlessly with both dressed-up and smart-casual outfits. We haven’t wanted to take it off since it arrived.
If you are looking to add a vintage Omega to your collection, the Seamaster Cosmic 166.026 reverse panda is an outstanding choice. Its blend of modern dial contrast and classic Seamaster elegance makes it a standout piece. With its rich history and exceptional craftsmanship, this timepiece embodies the best of the Omega Seamaster line. Don’t miss the opportunity to own this eye-catching example that is sure to bring joy to any collector.
Want to learn more about Omega Cosmic? Check out our detailed article
Maker: Omega
Model: Seamster 166.026
Era: Late 1960s
Case Diameter: 35.5 mm
Lug Width: 18 mm
Case Condition: Case in nice condition with brush and mirror finish retained on the case
Dial Condition: Black grey dial with white outer ring in perfect condition, featuring a striking reverse panda layout with no visible aging, there are some minor patina form on the hands of the watch
Movement: Automatic Cal. 565. in running condtition all function working perfectly
Of course, it comes with your choice of color from our Saddle Series straps! Just let us know which one you'd like to pair with this beauty!