Originally introduced to the market in 1947, the celebrated Cosmic model was Omega's first watch featuring a full calendar combined with moon phases. It was mainly available in 14K or 18K yellow gold, and less often in pink gold, fitted with various dial configurations.

Offered in extremely appealing condition, the present example illustrates the evolution of the model over time. This example from the 1950s features a highly elaborate square construction with fancy lugs. From the 1950s to the 1970s, watchmaking design does indeed focus on much more elaborate and geometric case constructions. The trend will eventually fizzle out in the 1980s with the return of the more conventional round case style.

The present example is made out of 14K yellow gold, a detail which makes sense as the original destination of the piece was the American market, as confirmed both by the Omega Archives and by the movement stamped OXG, a detail only found on watches sold in the USA. Swiss watchmakers sometimes employed 14K yellow gold for pieces destined to the American market in an effort to limit the impact of import duties.

The 14K gold hallmark present to the inside of the case back is only one of two highly interesting details, the second being the case maker stamp, a 26 in a key, identifying Geneva based Ponti Gennari. Among the most reputable companies of the time, Ponti Gennari is also renowned for its bracelet production and is considered one of the most important bracelet and case makers of the past century.