OMEGA Constellation Observatory

Omega's Constellation Observatory 140.13.39.21.03.001 measures 39.4 mm across in steel. The case stands 12.23 mm thick with a lug-to-lug span of 47.2 mm, and the blue dial sits under a domed sapphire crystal treated with anti-reflective coating on both sides. Inside is the self-winding calibre 8914, a Master Chronometer certified movement with a Co-Axial escapement and a free sprung-balance on a silicon spring, rated to 60 hours of power reserve and resistant to fields up to 15,000 gauss. A time zone function allows independent adjustment of the hour hand, and the transparent caseback shows the rhodium-plated rotor and Geneva-waved bridges. The watch comes on a blue alligator leather strap lined in grained calf, closed with a steel pin buckle. It stays water resistant to a depth of 30 metres.