OMEGA Constellation

Omega's Constellation 131.20.39.20.52.001 has a 39 mm case in steel and Sedna gold. The case measures 12.43 mm thick with a lug-to-lug of 41 mm, and the silver dial sits behind a domed sapphire crystal with antireflective treatment on both sides. Inside is the self-winding calibre 8800, a Master Chronometer movement certified by METAS and resistant to magnetic fields of up to 15,000 gauss, with a free sprung-balance and silicon balance spring. Power reserve runs to 55 hours. The date sits on the dial, and a transparent caseback shows the movement. Diamonds are set on the case. The steel and Sedna gold bracelet closes with a butterfly clasp with comfort setting. Water resistance sits at 50 metres, or 5 bar.