OMEGA Constellation

Omega's Constellation ref. 131.33.41.21.03.001 has a 41 mm steel case. The case measures 13.45 mm thick with a 44 mm lug-to-lug span, and the blue dial sits under a domed sapphire crystal with anti-reflective treatment on both sides. Self-winding calibre 8900 drives the watch, with a free sprung-balance, silicon balance spring and two series-mounted barrels giving 60 hours of power reserve. It is certified as a Master Chronometer, tested by METAS to resist magnetic fields up to 15,000 gauss. A date function and a display back are both present, the latter showing the rhodium-plated rotor and Geneva-waved bridges. The blue leather strap has a rubber and alligator surface and closes with a steel foldover clasp. Water resistance sits at 50 metres.