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Omega Seamaster Aqua Terra 150M Co-Axial Master Chronometer 38 — 220.10.38.20.01.001

Omega

Seamaster Aqua Terra 150M Co-Axial Master Chronometer 38

220.10.38.20.01.001

A refined 38 mm sport watch built around Omega's Master Chronometer standard.

Estimated market value
$3,900
Confidence: Moderate
Original retail: $6,900

An estimate from current market data — not an offer. Your actual value depends on condition, completeness, and authentication.

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Overview

The Seamaster Aqua Terra 150M Co-Axial Master Chronometer 38 in reference 220.10.38.20.01.001 pairs a 38 mm stainless steel case with a black teak-pattern dial, striking a balance between sporting intent and everyday elegance. Introduced in 2017, it sits within Omega's long-running Seamaster line and is powered by the in-house Calibre 8800, one of the brand's most capable self-winding movements. The result is a versatile, mid-sized watch that appeals equally to collectors seeking wearability and those drawn to certified precision.

History

The Aqua Terra sub-line was conceived as a dressed-up counterpart to the more utilitarian Seamaster Professional models, offering water resistance to 150 metres in a case suited to both boardroom and shoreline. The 38 mm sizing was introduced to broaden the collection's appeal, complementing the larger 41 mm references that had anchored the line. The adoption of the Master Chronometer certification — issued by METAS, the Swiss Federal Institute of Metrology — marked a significant step for the Aqua Terra, guaranteeing performance across stringent tests including resistance to magnetic fields of 15,000 gauss. Reference 220.10.38.20.01.001 has remained in continuous production since 2017, establishing itself as a steady presence in Omega's core catalogue.

Notable points

  • Calibre 8800 is a Co-Axial escapement movement certified to the METAS Master Chronometer standard, ensuring accuracy of 0/+5 seconds per day.
  • The black teak-pattern dial references the horizontal teak-wood deck planking motif that has been a hallmark of the Aqua Terra line since its introduction.
  • At 38 mm, the case occupies a versatile mid-size position that suits a wide range of wrist sizes and wearing occasions.
  • The stainless steel case offers water resistance to 150 metres, consistent with the Seamaster family's aquatic heritage.
  • Master Chronometer certification requires resistance to magnetic fields of at least 15,000 gauss, a standard that goes well beyond the traditional COSC chronometer benchmark.

Specifications

Brand
Omega
Collection
Seamaster
Reference
220.10.38.20.01.001
Years of production
2017 – present
Case
38mm Stainless steel
Case material
Stainless steel
Case diameter
38 mm
Movement
Cal. 8800
Crystal
Sapphire
Dial
Black teak-pattern
Bezel
Fixed steel
Bracelet / strap
Steel bracelet
Water resistance
150 m
Power reserve
55 h
Complications
Date
Type
Sport
Worn as
Unisex
Also known as
Aqua Terra, アクアテラ, シーマスター, 海马150, AT150

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