The Omega Seamaster Aqua Terra 150M Co-Axial Chronometer (ref. 231.25.30.20.55.004) is a refined 30mm ladies' timepiece from OMEGA's celebrated Seamaster collection. Drawing inspiration from OMEGA's rich maritime heritage, the hallmark Teak Concept dial evokes the wooden decks of luxury sailboats and is finished in luminous white mother-of-pearl, adorned with diamond-set hour markers and yellow gold-tone hands. A date window at the 3 o'clock position provides everyday practicality.

The 18K yellow gold bezel is set with diamonds and paired with a 316L stainless steel case body measuring 30mm in diameter, with a lug-to-lug length of 36mm. A domed, scratch-resistant sapphire crystal with anti-reflective treatment on both sides protects the dial, while a transparent exhibition caseback reveals the movement within. The watch rests on a polished stainless steel bracelet secured by a deployment clasp, and a screw-in crown ensures water resistance to 150 metres (500 feet).

At its heart beats the OMEGA Co-Axial Calibre 8520, a COSC-certified chronometer movement delivering superior accuracy with reduced friction and longer service intervals compared to a conventional lever escapement. The movement provides approximately 50 hours of power reserve and the total watch weight is approximately 100 grams.