Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold White Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.55.001 - BRAND NEW Omega Seamaster Aqua Terra 150M Co-Axial Master…

The Omega Seamaster Aqua Terra 150M is one of the most enduring collections in modern Swiss watchmaking, born from Omega's storied maritime heritage and refined over successive generations into a watch that transitions effortlessly from the marina to the boardroom. Reference 220.20.38.20.55.001 represents the collection at its most refined: a 38mm case sized for a wide range of wrists, dressed in a considered mix of stainless steel and Omega's proprietary Sedna gold alloy, and crowned with a white dial set with diamond indexes.

Sedna gold is an Omega-patented 18-karat rose-gold alloy engineered to resist the color fading that can affect conventional rose gold over decades of wear, meaning the warm blush tones of the bezel and bracelet center links on this reference will hold their character for years to come. The contrast between the cool brushed and polished steel of the case and the honeyed warmth of the Sedna gold elements gives ref. 220.20.38.20.55.001 a two-tone presence that feels contemporary rather than retro, a balance that is genuinely difficult to achieve in watch design.

At the heart of this Aqua Terra beats Omega's Co-Axial Master Chronometer movement, a caliber independently certified by the Swiss Federal Institute of Metrology (METAS) to meet the most stringent accuracy and magnetic-resistance standards in the Swiss industry. Master Chronometer certification demands demonstrated resistance to magnetic fields of 15,000 gauss, a level that renders the movement impervious to the everyday electromagnetic sources that can disturb lesser calibers. The Co-Axial escapement also reduces friction in the gear train, translating into longer service intervals compared with a conventional lever escapement.

The white dial is set with diamond indexes that catch light with every movement of the wrist, adding genuine gem-set luxury to what would already be a striking dial. The overall 38mm footprint is a considered choice: large enough to read easily and project presence, compact enough to wear under a shirt cuff and to suit a broad range of wrist sizes, making this reference one of the more versatile high-complication dress-sport watches available at this price point. The integrated stainless steel and Sedna gold bracelet mirrors the dial's two-tone theme and gives the watch a cohesive, purpose-built look that aftermarket straps simply cannot replicate.

Bizak & Co. is pleased to offer this Omega Seamaster Aqua Terra 150M ref. 220.20.38.20.55.001 brand new, complete with full Omega box and papers. Buying new from an authorized source means you receive the complete manufacturer's warranty, an unworn example in flawless condition, and the confidence that every component is factory-correct.