OMEGA Constellation

Omega's Constellation 131.10.39.20.06.001 is a steel model measuring 39 mm across. The case stands 12.43 mm thick with a lug-to-lug span of 41 mm, and the grey dial sits under a domed sapphire crystal treated against reflections on both sides. Inside is the self-winding calibre 8800, a Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss, with a free sprung-balance and silicon balance spring. Power reserve runs to 55 hours. A date function is set into the dial, and a sapphire display back shows the movement's Geneva waves in arabesque finish. The watch is fitted to a steel bracelet closed by a butterfly clasp with comfort setting. Five bar of water resistance, 50 metres, is what the clasp and case are built to hold.