The Globemaster is already a legendary name in the OMEGA family. Now it has been updated to become the world's first Master Chronometer, further enhancing its reputation within the watchmaking industry. For this 41.00 mm model, the 18K Sedna gold case features a polished fluted bezel. The caseback includes an 18K Sedna gold Central Observatory medallion set in scratch-resistant sapphire crystal. The sun-brushed blue "Pie Pan" dial is reminiscent of the first 1952 Constellation model. Each of its facets includes a month of the year in keeping with the Annual Calendar function. There is an 18K Sedna gold Constellation star and OMEGA logo, and 18K Sedna gold hands and indexes which have been filled with Super-LumiNova. This watch has a blue leather strap and is driven by OMEGA's Co-Axial Master Chronometer Annual Calendar Calibre 8923, featuring revolutionary anti-magnetic technology.