Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Small Seconds 38mm Sedna Gold Diamond Bezel White Diamond Dial Alligator Leather Strap 220.58.38.20.55.002 - BRAND NEW

The Omega Seamaster Aqua Terra 150M is one of the most celebrated watch families in modern horology, born from Omega's storied maritime heritage and refined over decades into a collection that bridges the gap between a serious sports watch and an elegant dress timepiece. The Aqua Terra line takes its name from its dual identity—equally at home on land and at sea—and has earned a devoted global following thanks to its clean horizontal "teak" dial motif, robust construction, and the formidable Co-Axial Master Chronometer movement system that powers it. Reference 220.58.38.20.55.002 sits at the very summit of this lineage, bringing together precious materials and gem-setting artistry that elevate it into true haute horlogerie territory.

At the heart of this reference is the 38mm case rendered entirely in Sedna Gold, Omega's exclusive 18-carat rose-gold alloy developed to resist the fading that affects conventional rose gold over time. Sedna Gold's proprietary formula produces a warm, rich hue that deepens beautifully against the sparkling diamond-set bezel, which frames the dial with a continuous band of brilliant-cut diamonds. The result is a case silhouette that is simultaneously bold and refined—substantial enough to make a statement on the wrist, yet proportioned at 38mm to suit a wide range of wrist sizes with grace and balance.

The white diamond dial is a masterclass in restrained luxury. Set with diamonds and finished to Omega's exacting standards, it catches light from every angle while maintaining the legibility and architectural clarity the Aqua Terra is known for. The small-seconds complication, positioned at six o'clock, adds a classical, almost dress-watch dimension to what is fundamentally a 150-meter water-resistant sports piece. The alligator leather strap complements the warmth of the Sedna Gold case, providing supple comfort and a formal elegance that makes this watch equally appropriate for a black-tie gala or a sophisticated daytime occasion.

Powering reference 220.58.38.20.55.002 is an Omega Co-Axial Master Chronometer movement, a designation that carries significant weight in the watchmaking world. Master Chronometer certification is awarded by METAS, the Swiss Federal Institute of Metrology, and requires the movement to pass eight rigorous tests covering precision, magnetic resistance, and performance across demanding conditions. The Co-Axial escapement, originally developed by master watchmaker George Daniels and adopted by Omega, reduces friction in the gear train, extending service intervals and contributing to long-term accuracy in a way that conventional lever-escapement movements cannot match.

Wearing the Omega Seamaster Aqua Terra 150M 220.58.38.20.55.002 is an experience defined by the sensory pleasure of precious metal, the subtle weight of Sedna Gold, and the confidence that comes from owning a timepiece certified to the highest modern standard. This is a watch that transcends seasonal trends and will be as covetable decades from now as it is today—a true heirloom-grade investment in both craftsmanship and enduring style.

Bizak & Co. is proud to offer this reference brand new, ensuring you receive the full manufacturer experience including all accompanying documentation and presentation materials. Our team of specialist advisors is on hand to answer every question and guide you through your purchase with the transparency and expertise you deserve. Browse the full Omega collection at bizakandco.com or reach out directly to secure reference 220.58.38.20.55.002 before it sells—pieces of this caliber at this level of specification move quickly.