Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Watch - 41 mm Sedna Gold Case - Blue Dial - Blue Rubber Strap - 220.52.41.21.03.00141 mm 18K Sedna gold case, transparent back, domed scratch resistant sapphire crystal anti reflective treatment on both sides, blue dial is sun brushed and is distinguished by a horizontal teak pattern which is inspired by the wooden decks of luxury sailboats, Caliber Omega 8901 self winding movement with co axial escapement, chronometer, date, approximately 60 hours of power reserve, blue rubber strap. Water resistant to 15 bar (150 metres 500 feet).