Omega Style No: 435.18.40.21.02.002 Omega De Ville Trésor Co-Axial Master Chronometer Small Seconds - 40 mm Steel Case - Diamond Bezel - Silvery Crystal Dial

40 mm steel case, transparent back, bezel paved with 72 full-cut diamonds, scratch-resistant sapphire crystal with anti-reflective treatment on both sides, domed silvery crystal dial with a Small Seconds display at 6H, Calibre 8926 manual-winding chronometer movement with small seconds. Water resistant to 30 metres (100 feet).