OMEGA Constellation Observatory

Omega's Constellation Observatory, reference 140.13.39.21.02.001, comes in a 39.4 mm steel case. It measures 12.23 mm thick with a lug-to-lug span of 47.2 mm. The domed sapphire crystal is bevelled and treated with anti-reflective coating on both sides. Inside, the self-winding calibre 8914 drives central hour and minute hands and a time zone function, with a 60 hour power reserve. This is a Master Chronometer, certified by METAS and resistant to magnetic fields up to 15,000 gauss, with a sapphire display back showing the rhodium-plated rotor and bridges. The silver dial pairs with a grey alligator leather strap on a steel pin buckle. Water resistance is limited to 30 metres, so this is not a watch for diving.