OMEGA Constellation

Omega's Constellation 131.20.29.20.58.001 measures 29 mm across in a steel and gold case. The case stands 12 mm thick with a lug-to-lug span of 31.2 mm, and the watch is set with diamonds. Its dial is yellow and sits under a domed sapphire crystal with anti-reflective treatment on both sides. A transparent caseback reveals the movement. Inside is the self-winding calibre 8700, a Co-Axial Master Chronometer movement certified by METAS and resistant to magnetic fields up to 15,000 gauss, with a 50-hour power reserve. It also carries a date function. The steel and gold bracelet closes with a butterfly clasp that has a comfort setting. Omega rates the case to 50 metres of water resistance.