The Seamaster Aqua Terra is a superb tribute to OMEGA’s rich maritime heritage. This slim 30 mm model achieves its refined proportions through OMEGA's innovative Co-Axial Master Chronometer calibre 8750, certified at the industry's highest standard by the Swiss Federal Institute of Metrology (METAS). This 30 mm stainless steel and 18K Sedna™ Gold model has a symmetrical polished case and features a screw-in caseback with wave-edged design.