Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Sedna Gold Diamond Bezel Diamond Pave Sapphire Index Dial Alligator Leather Strap 220.58.38.20.99.002 - BRAND NEW

The Omega Seamaster Aqua Terra 150M is one of the most versatile and celebrated collections in Swiss watchmaking, bridging the gap between a serious sport watch heritage and the refined aesthetics demanded by contemporary luxury dress wear. Introduced in the early 2000s, the Aqua Terra line took the Seamaster's proven water-resistant architecture and gave it cleaner, more elegant lines, the unmistakable horizontal "teak" deck-inspired dial motif, and the kind of finishing that makes it equally at home at a formal dinner or aboard a sailing yacht. Over successive generations Omega has elevated the collection by introducing its own ground-breaking movement technology and precious-metal dial craft, culminating in references like 220.58.38.20.99.002 that represent the very pinnacle of the lineup.

The case of this reference is fashioned in Sedna Gold, Omega's proprietary 18-karat rose-gold alloy developed in-house and trademarked to preserve its rich, warm reddish tone far longer than standard rose gold—a property that stems from a carefully guarded formula incorporating copper, palladium, and gold in precise ratios. At 38mm the case occupies a sweet spot for a ladies' luxury watch: substantial enough to carry the diamond bezel with visual authority, yet refined and balanced on the wrist. Every surface of the case has been finished to exacting standards, alternating between polished and brushed planes that catch the light differently with each movement of the hand.

The dial is a breathtaking diamond pavé composition set with sapphire indices, transforming what is already an architecturally confident face into something resembling a piece of high jewellery. The diamonds are meticulously graded and set by Omega's artisans so that coverage is seamless and the scintillation is continuous across the entire surface. Framing that spectacle is the diamond-set bezel, each stone precisely matched for cut and clarity and secured so as to withstand the demands of everyday luxury wear. Together, the bezel and dial create a concentrated radiance that is immediately recognisable as belonging to the top tier of the Aqua Terra range.

At the heart of reference 220.58.38.20.99.002 beats Omega's Co-Axial Master Chronometer movement, the result of a landmark collaboration between Omega and the Swiss Federal Institute of Metrology (METAS). Master Chronometer certification requires a movement to pass eight stringent tests—including resistance to magnetic fields of 15,000 gauss—and to achieve a daily rate performance that exceeds traditional COSC chronometer standards. The Co-Axial escapement itself reduces friction compared with a conventional lever escapement, meaning longer intervals between servicing and greater long-term accuracy, attributes that matter as much in a jewellery-forward ladies' watch as in a professional diver's tool watch.

The alligator leather strap completes the watch's identity as a luxury object. Supple, precisely stitched, and finished to complement the Sedna Gold tone of the case, it ensures comfort throughout the day while reinforcing the haute horlogerie character of the overall package. Omega fits an appropriate deployant or pin buckle in matching Sedna Gold so the wrist presence from clasp to crown reads as a unified, considered design.

Bizak & Co. offers this brand-new Omega Seamaster Aqua Terra 150M ref 220.58.38.20.99.002 complete with box and papers, giving you the full factory warranty and the assurance of an entirely unworn timepiece. Our team of luxury watch specialists is available to answer every question about this reference, arrange secure shipping, or walk you through purchase options—reach out through bizakandco.com and experience the Bizak difference when you buy online.