Omega
Seamaster Aqua Terra 150M Co-Axial
231.10.42.21.03.001
Dressy sport credentials anchored by Omega's first in-house Co-Axial movement.
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Overview
The Omega Seamaster Aqua Terra 150M Co-Axial reference 231.10.42.21.03.001 pairs a 41.5 mm stainless steel case with a distinctive blue teak-pattern dial, bridging the gap between formal and aquatic sport watches. Powering the watch is Calibre 8500, Omega's landmark in-house Co-Axial movement introduced to mark a new era of manufacture independence. The result is a versatile Seamaster variant equally at home on a dress shirt cuff or a sailing deck.
History
The Aqua Terra line was conceived as a refined, land-and-sea companion within the broader Seamaster family, offering water resistance suited to active use without the utilitarian aesthetic of a dedicated dive watch. This reference was produced from 2008 through 2017, spanning the period during which Omega systematically rolled out its in-house Co-Axial calibres across the collection. Calibre 8500, debuted in the late 2000s, was a milestone for the brand, representing Omega's most significant movement architecture since the adoption of the Co-Axial escapement licensed from George Daniels. Collectors regard this generation as the first to fully realise the promise of manufacture-level finishing combined with the reduced-friction Co-Axial escapement.
Notable points
- Calibre 8500 is an in-house, bi-directional self-winding movement featuring a free-sprung balance and twin barrels for an extended power reserve.
- The blue teak-pattern dial takes its name from the vertical teak-plank decking traditional on sailing yachts, a recurring Aqua Terra design signature.
- At 41.5 mm, the case size represented a mainstream sweet spot for the line during the 2010s, offering wrist presence without excess bulk.
- The Co-Axial escapement reduces sliding friction between escapement components, theoretically extending service intervals compared with a conventional lever escapement.
- Stainless steel case and bracelet construction keeps the watch firmly in sport-watch territory while the dial texture and blued hands lend a dressy character.
Specifications
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