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Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold Grey Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.56.001 - BRAND NEW

Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold Grey Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.56.001 - BRAND NEW Omega Seamaster Aqua Terra 150M Co-Axial Master…

Reference 220.20.38.20.56.001

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Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold Grey Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.56.001 - BRAND NEW

$9,799.00
Requested condition
Brand New
Requested accessories
Full Set

By Omega

Sourced to order. We confirm the watch, condition and final price before purchase. Reference images shown.

Eligible watches: 90-day returns for store credit only. Brand-new watches and other exclusions are final sale. Return terms.

Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold Grey Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.56.001 - BRAND NEW

Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold Grey Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.56.001 - BRAND NEW

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Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer Ladies 38mm Stainless Steel Sedna Gold Grey Dial Diamond Set Index Steel Sedna Gold Bracelet 220.20.38.20.56.001 - BRAND NEW

Catalogue watch price: $9,799.00 USD

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The Omega Seamaster Aqua Terra 150M reference 220.20.38.20.56.001 is a brand-new ladies 38mm luxury sports watch crafted in stainless steel and Sedna gold, featuring a sophisticated grey dial set with diamond indices and a Sedna gold bezel. Powered by Omega's Co-Axial Master Chronometer movement, it represents the pinnacle of Swiss watchmaking precision and elegance. The integrated stainless steel and Sedna gold bracelet completes a refined, two-tone aesthetic built for both active lifestyles and formal occasions.

What sets reference 220.20.38.20.56.001 apart is the seamless union of Omega's proprietary Sedna gold alloy—prized for its warm, enduring rose tone—with cool stainless steel, elevated further by diamond-set hour indices on the grey sunbrushed dial. Available brand new with box and papers at Bizak & Co., this is an exceptional opportunity to acquire an investment-grade timepiece; contact us today or browse our full Omega collection at bizakandco.com.

Compare it across every Seamaster Aqua Terra 150M reference we carry, or browse the full Omega collection at Bizak & Co.

Buy this Seamaster Aqua Terra 150M, trade in your current watch, or sell us yours. Contact Bizak & Co. to make an offer or request a fair-market valuation.

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The Omega Seamaster Aqua Terra 150M is one of the most celebrated lines in contemporary Swiss watchmaking, born from Omega's storied maritime heritage and refined over decades into a collection that bridges serious aquatic performance with boardroom elegance. The Aqua Terra name itself signals a watch equally at home on land and sea, and the 150M designation confirms its impressive water-resistance credentials. Reference 220.20.38.20.56.001 sits within the current generation of the collection, reflecting Omega's commitment to Master Chronometer certification—the industry's most stringent standard for precision, magnetic resistance, and overall performance.

At 38mm, the case occupies a sweet spot that flatters a broad range of wrists without sacrificing the watch's confident, sporty presence. The case is constructed in stainless steel, chosen for its durability, hypoallergenic qualities, and its ability to hold a mirror polish and satin finish simultaneously. Sedna gold accents—Omega's proprietary 18-karat rose gold alloy formulated to resist fading and retain its warm blush tone far longer than conventional rose gold—appear on the bezel and are woven throughout the bracelet, lending the watch a luxurious two-tone character that feels entirely contemporary.

The grey dial is the visual centerpiece of this reference. Its subdued, sophisticated hue provides the perfect canvas against which diamond-set hour indices catch and scatter light with every movement of the wrist. The use of diamonds in place of standard applied indices is a hallmark of Omega's gem-setting expertise and elevates this Aqua Terra firmly into the luxury jewellery-watch category without compromising its legibility or sporting soul. The symmetry of the dial layout—characteristic of the Aqua Terra line with its clean, uncluttered design—ensures the watch reads effortlessly at a glance.

Beneath the case, a Co-Axial Master Chronometer movement powers the watch, representing the convergence of two landmark Omega innovations. The Co-Axial escapement, developed in partnership with the late watchmaker George Daniels, dramatically reduces friction in the movement, extending service intervals and improving long-term accuracy. Master Chronometer certification, awarded by the Swiss Federal Institute of Metrology (METAS), guarantees the movement meets exacting standards across eight distinct tests covering precision, power reserve performance, and resistance to magnetic fields of up to 15,000 gauss—making this watch exceptionally resilient in modern environments filled with electronic devices.

The integrated stainless steel and Sedna gold bracelet mirrors the case construction, flowing naturally from the lugs to the wrist for a coherent, sculpted silhouette. Its mixed-finish links—alternating polished and satin surfaces—enhance the interplay between warm and cool tones that defines this reference's aesthetic appeal. Whether paired with eveningwear, business attire, or weekend casual dress, reference 220.20.38.20.56.001 adapts with effortless versatility.

Bizak & Co. is pleased to offer this Omega Seamaster Aqua Terra 150M reference 220.20.38.20.56.001 brand new, complete with its original box and papers. Purchasing from Bizak ensures you receive a fully authenticated timepiece backed by Omega's manufacturer warranty and the assurance of a trusted luxury watch specialist. Whether you are adding to a collection or buying your first serious Swiss watch, this reference represents outstanding value and enduring wearability. Visit bizakandco.com or contact our team directly to secure yours today.

Technical Details
Reference
220.20.38.20.56.001
Model
Seamaster Aqua Terra 150M
Movement
Automatic
Case material
Rose Gold
Bracelet material
Two-Tone
Dial
Grey diamond-set index dial
Case size
38mm
Requested condition
Brand New
Requested accessories
Full Set
FAQ

1. What makes the Omega Seamaster Aqua Terra 150M reference 220.20.38.20.56.001 special?
This reference combines Omega's Sedna gold alloy with stainless steel, a grey diamond-set dial, and a Sedna gold bezel in a 38mm case—making it one of the most refined and distinctive variants in the Aqua Terra lineup. It also carries Master Chronometer certification, the highest standard of accuracy and magnetic resistance in the Swiss watch industry. The result is a watch that is simultaneously a serious precision instrument and a genuine luxury jewellery piece.

2. What movement powers the Omega Seamaster Aqua Terra 220.20.38.20.56.001?
The watch is driven by Omega's Co-Axial Master Chronometer movement, which features the Co-Axial escapement for reduced friction and extended service intervals. Master Chronometer certification from METAS confirms the movement resists magnetic fields up to 15,000 gauss and meets stringent standards for daily rate accuracy. This makes it one of the most technically advanced movements available in a production luxury watch today.

3. What is the case size of the Omega Seamaster Aqua Terra 150M 220.20.38.20.56.001?
The case measures 38mm in diameter, a versatile size that sits comfortably on a wide range of wrist sizes and is particularly well-suited for women seeking a watch with presence without being oversized. The stainless steel case is complemented by Sedna gold accents on the bezel and bracelet. This 38mm format strikes the ideal balance between sporty boldness and refined elegance.

4. Is the Omega Seamaster Aqua Terra 150M suitable for everyday wear?
Absolutely—the Aqua Terra 150M is engineered for daily use, offering 150 metres of water resistance, a robust stainless steel construction, and a Co-Axial movement designed for long service intervals. The bracelet and case are finished to withstand the rigors of an active lifestyle while remaining polished enough for formal occasions. Its Master Chronometer-certified movement also resists the magnetic fields generated by everyday electronics, ensuring reliable accuracy.

5. What are the dial and material highlights of reference 220.20.38.20.56.001?
The dial is grey with diamond-set hour indices, providing a luxurious yet understated aesthetic that distinguishes this reference from standard Aqua Terra models. The case is stainless steel with Sedna gold—Omega's proprietary 18-karat rose gold alloy developed to maintain its warm tone over time—used for the bezel and bracelet links. Together, these elements create a two-tone watch of considerable visual impact and lasting material quality.

6. Is this Omega Aqua Terra a good buy, and how can I purchase it from Bizak & Co.?
Reference 220.20.38.20.56.001 is offered brand new with box and papers at Bizak & Co., meaning you receive the full Omega manufacturer warranty and complete authentication documentation. As a bi-material, diamond-set Master Chronometer model, it occupies a premium position within the Aqua Terra range and tends to hold its value well relative to entry-level alternatives. Visit bizakandco.com or contact our team directly to purchase or request further details.

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90-Day Returns for Store Credit

Eligible watches may be returned within 90 days for store credit. Brand-new watches and other exclusions are final sale.

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U.S. overnight shipping is $100; international shipping is $500. Dispatch takes 2–3 business days after your wire clears. International transit times vary. Shipping details.

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