OMEGA De Ville Trésor Co-Axial Master Chronometer Power Reserve 40mm Mens Watch 435.13.40.22.01.001Characterised by its thin and elegant case, the Trésor line was first launched by OMEGA in 1949 and housed the legendary 30mm calibre. More than half a century later, it continues to impress with one of today’s most advanced mechanical movements.This model has a polished 40 mm stainless steel case, which is presented on a black leather strap. The domed black dial includes a Power Reserve display at 12H, a Small Seconds display at 6H, along with hands and domed indexes in 18K white gold.Inside, this De Ville Trésor is powered by the OMEGA Co-Axial Master Chronometer Calibre 8934 and is certified at the industry’s highest standard of precision, chronometric performance and magnetic resistance.