OMEGA Constellation

Omega's Constellation 131.23.41.21.11.001 measures 41 mm across in steel and Sedna gold. The case stands 13.45 mm thick with a lug-to-lug span of 44 mm, and the red dial sits under a domed sapphire crystal with antireflective treatment on both sides. Inside is the self-winding calibre 8900, a Master Chronometer certified movement with Co-Axial escapement, resistant to magnetic fields up to 15,000 gauss. Two barrels mounted in series give it 60 hours of power reserve, and the movement also runs a time zone function alongside the date. The rhodium-plated rotor and Geneva waves in arabesque show through the display back. A burgundy leather strap with a rubber and alligator surface closes on a steel foldover clasp, and the case is rated to 50 metres.