OMEGA De Ville Prestige

Omega's De Ville Prestige 434.10.40.20.01.001 measures 40 mm across in steel. The case stands 9.93 mm thick with a lug-to-lug span of 46.26 mm, and the black dial sits under a domed sapphire crystal with antireflective treatment inside. Self-winding calibre 8800 drives the watch, with a Co-Axial escapement and a free sprung-balance on a silicon hairspring that resists magnetic fields to 15,000 gauss. Power reserve runs to 55 hours. It is certified as a Master Chronometer by METAS, and the date sits on the dial while a transparent caseback shows the movement. A steel bracelet with a butterfly clasp completes the watch. Omega rates the case to 30 metres of water resistance.