OMEGA Constellation

The Omega Constellation 131.25.39.20.52.002 measures 39 mm across in steel and yellow gold. The case stands 12.43 mm thick with a lug-to-lug of 41 mm, and a domed sapphire crystal with antireflective treatment on both sides covers the silver dial. Inside is the self-winding calibre 8800, a Master Chronometer certified movement with a silicon balance spring, resistant to magnetic fields up to 15,000 gauss, and it holds 55 hours of power reserve. A date function sits on the dial, and the watch is set with diamonds. A display back shows the movement from behind. The bracelet is steel and yellow gold, fitted with a butterfly clasp that has a comfort setting. The case carries a 50 metre water resistance rating.