OMEGA Constellation

This Omega Constellation 131.20.29.20.05.002 has a 29 mm case in steel and gold. The case measures 12 mm thick with a lug-to-lug span of 31.2 mm. A domed sapphire crystal with anti-reflective coating on both sides covers the white dial. Inside is the self-winding calibre 8700, a Master Chronometer movement with Co-Axial escapement and a silicon balance spring, certified by METAS and resistant to magnetic fields up to 15,000 gauss. Power reserve runs to 50 hours. Alongside the date, the transparent caseback lets the movement's Geneva waves and rhodium plating show. The steel and gold bracelet closes with a butterfly clasp fitted with a comfort setting, and the case carries a 50 metre water resistance rating.