OMEGA Constellation Observatory

The Omega Constellation Observatory 140.50.39.21.99.001 measures 39.4 mm across in Moonshine gold. The case stands 12.23 mm thick with a lug-to-lug span of 47.2 mm, and the dial sits under a domed, bevelled sapphire crystal with anti-reflective treatment on both sides. Inside is the self-winding calibre 8915, a Master Chronometer movement with a Co-Axial escapement and silicon balance spring, certified to resist magnetic fields up to 15,000 gauss. It offers a time zone function and runs on 60 hours of power reserve. The rotor and balance bridge carry Geneva waves in arabesque, visible through the display back. The yellow dial pairs with a Moonshine gold bracelet on a foldover clasp. Water resistance is rated to 30 metres.