The Seamaster Aqua Terra 150M ladies’ collection was the first whose mechanical models were equipped with the extraordinary OMEGA Co-Axial calibre 8520/8521. They are also among the brand’s first watches to feature the Si14 silicon balance spring, a feature which contributes to their superb chronometric performance. And in 2014 they became the first ladies’ timepieces to be powered by the state-of-the-art, anti-magnetic OMEGA Master Co-Axial calibres. Discover the collection: http://ift.tt/1rZfl1v.
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