This 1954 Omega Sector, described as the Sei Tacche and catalogued Ref. 2639 16, exemplifies mid-century watch design with its sector-style dial layout. The clear graphic segmentation and precise proportions reflect the era’s focus on legibility and restrained elegance. Under the dial it is powered by Omega’s Cal. 266, a movement that speaks to the brand’s long tradition of robust, well-finished calibres. For a modern collector, the watch offers a direct link to 1950s design thinking and mechanical craftsmanship, appreciated for its period character and technical provenance.