The Omega Constellation reference 131.12.41.21.06.001 has a stainless steel case of 41.00mm. Contrary to the other models released alongside it, this does not have the ceramic bezel. Inside ticks the self-winding caliber 8900. The dial is Silver.
Movement
First of Omega's movements to receive the new METAS cerfication. Introduced at BaselWorld 2015 in the Omega Globemaster; said to eventually replace the 8500. Resistant to magnetic fields of over 15'000 Gauss. Free-sprung balance with silicon balance spring. Two barrels mounted in series.