OMEGA 140.13.39.21.02.001 New Constellation Observatory 39.4 mm, O‑megasteel on alligaProduct Overview The OMEGA Observatory medallion commemorates OMEGA's decisive moment in the pursuit of precision. This model, made of polished and brushed O MEGA steel with a case diameter of 39. 4mm, features a design with chamfered "dog leg" lugs and a bezel with clear cut facets. It is paired with a glossy dark gray leather strap that has a polished buckle. The "Pie Pan" dial, reminiscent of the "Constellation" introduced in 1952, is adorned with