OMEGA Constellation

Omega's Constellation 131.50.41.21.99.001 is a 41 mm case in Moonshine gold, part of the men's Constellation line. The case measures 13.45 mm thick with a 44 mm lug-to-lug span, and the yellow dial sits under a domed sapphire crystal treated with antireflective coating on both sides. Inside is the calibre 8901, a self-winding movement with Co-Axial escapement and a freesprung balance on a silicon spring, certified as a Master Chronometer and resistant to magnetic fields up to 15,000 gauss. It carries a time zone function alongside the date, and the transparent caseback shows the 18K Sedna gold rotor. Power reserve runs to 60 hours. The bracelet, also in Moonshine gold, closes with a butterfly clasp with comfort setting. Water resistance is rated to 50 metres.