Rooted in OMEGA's maritime heritage, the Seamaster Aqua Terra presents a symmetrical 38mm stainless steel case measuring 12.2mm thick with a lug-to-lug span of 45mm and a between-lugs width of 19mm. The caseback features OMEGA's signature wave-edged design, while a domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides protects the dial. Water resistance is rated to 150 metres (15 bar).
The sun-brushed green PVD dial is defined by a horizontal "teak" pattern — an homage to the wooden decks of luxury sailboats — complemented by a date window at 6 o'clock. Rhodium-plated hands and indexes filled with white Super-LumiNova complete the face, delivering legibility in varying light conditions.
Powering the watch is the self-winding OMEGA Master Chronometer calibre 8800, certified by the Swiss Federal Institute of Metrology (METAS). It offers a power reserve of 55 hours and is presented on a polished and brushed steel bracelet featuring OMEGA's patented screw and pin system.