Omega 4831.40.31 (Pre-owned - Good) — USD 2,020 on eBay

The Omega De Ville Co-Axial reference 4831.40.31 stands as a significant marker in Omega’s modern horological trajectory, representing an early and pivotal integration of George Daniels' revolutionary Co-Axial escapement into the brand’s refined De Ville collection. Produced between 2005 and 2012, this model belongs to the De Ville series, which has long been Omega's canvas for classic and elegant timepieces, distinct from the sportier Seamaster or Speedmaster lines. Its introduction underscored Omega's commitment to advancing mechanical precision and reliability through innovative technology. The timepiece is presented in a 41 mm stainless steel case, offering a substantial yet sophisticated presence suitable for various occasions. Complementing the case is a clean silver dial, which enhances the watch's timeless dress watch aesthetic, ensuring excellent legibility and understated elegance. With a water resistance rating of 30 meters, the watch is designed for daily wear and offers protection against splashes, consistent with its role as a refined, non-sports instrument within the De Ville family. At the heart of the reference 4831.40.31 lies the automatic Omega Caliber 2500. This movement is historically crucial as the very first production caliber to incorporate the Co-Axial escapement, a groundbreaking mechanism designed to significantly reduce friction, thereby enhancing long-term accuracy and extending service intervals. For collectors, this reference holds particular appeal as a tangible piece of Omega's technical evolution, embodying the initial steps of a technology that would eventually define a large segment of the brand's mechanical movements and pave the way for its Master Chronometer certification in later years.