Omega ladies diamond constellation 27mm the stainless steel bezel with its engraved roman numerals is mounted on a 27mm stainless steel case and is presented on a matching braceletthis model features a white mother of pearl dial decorated with 12 diamond indexes and protected by a domed scratch resistant sapphire crystal glass movement automaticcase stainless steeldiameter 27mmbracelet stainless steelwater resistance 100mdial mother of pearldate function