Omega 231.10.42.21.02.005 Seamaster Aqua Terra White Dial Limited Edition Case Shape Round Case Dimensions 41.5mm Case Material Dial Color White Crystal Scratch Resistant Sapphire Bezel Fixed Screw-in Crown Yes Water Resistance 150m/500ft Case Back Stainless steel Band Material Stainless steel Color/Finish Brushed & Polished Clasp Push Button Folding Clasp Movement Automatic – Chronometer Complications COSC Certified Yes