OMEGA De Ville Ladymatic

The Omega De Ville Ladymatic 425.20.34.20.55.004 has a 34 mm case in steel and Sedna gold. The case measures 11.95 mm thick with a lug-to-lug span of 41.6 mm, and the white dial sits under a domed sapphire crystal with antireflective treatment on both sides. Inside is the self-winding calibre 8520, a chronometer movement with Co-Axial escapement and a free sprung-balance system using a silicon balance-spring. Power reserve runs to 50 hours. The dial carries a date display, and the watch is set with diamonds. A screw-down crown protects the movement, and a sapphire display back shows it off. The bracelet, also steel and Sedna gold, closes with a butterfly clasp. Omega rates the case to 100 metres.