OMEGA Constellation

Omega's Constellation 131.20.29.20.05.001 measures 29 mm across in a steel and Sedna gold case. The case stands 11.67 mm thick with a lug-to-lug span of 31.2 mm. A domed sapphire crystal with anti-reflective treatment on both sides covers the white dial. Inside is the self-winding calibre 8700, a Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss, running on a free sprung-balance with silicon hairspring and offering 50 hours of power reserve. The watch adds a date function, and the transparent caseback shows the movement finished with Geneva waves in arabesque. It sits on a matching steel and gold bracelet fitted with a butterfly clasp with comfort setting. The clasp closes over a case built to withstand 50 metres of water resistance.