A beautiful addition to a legendary collection, this Omega Globemaster Constellation annual calendar automatic men's watch is reminiscent of the first 1952 Constellation model, updated to become the world' first Master Chronometer. Fastened with a brown leather strap, this luxurious watch features a 41mm stainless steel case with a polished fluted 18ct Sedna gold bezel and a Central Observatory medallion caseback, set in scratch-resistant sapphire crystal. The sun-brushed grey "Pie Pan" dial has been inspired by the first 1952 Constellation model and is faceted with each month of the year, the date window at 6 o'clock and the 18ct Sedna gold Constellation star and Super-LumiNova filled hands. Water resistant to 100m, this beautifully made watch is powered by a self-winding movement with Co-Axial escapement and the Omega 8922 calibre, resistant to magnetic fields reaching 15,000 gauss and a power reserve of 55 hours. Tested like never before, this handsome watch has past several tests approved by the Swiss Federal Institute of metrology for exceptional reliability. O13023412206001