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Aqua Terra 150M Master Co‑Axial Chronometer Ladies' 38.5 mm

Red gold on red gold

231.55.39.21.55.001

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Description

Equipped with one of the world’s most advanced mechanical movement, the Seamaster Aqua Terra Master Co-Axial is stylish, sporty and prepared for an active lifestyle. This luxurious model features a pearled mother-of-pearl dial with 11 diamond indexes in 18K gold holders.

This 38.5 mm 18K red gold ladies' wristwatch, with its diamond-set bezel, is presented on an 18K red gold bracelet. At its heart is the revolutionary OMEGA Master Co-Axial calibre 8501, a movement that can resist strong magnetic fields - even those greater than 15,000 gauss.

5-Year Warranty

All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.

Features

  • Anti‑magnetic

  • Automatic watch

  • Chronometer

  • Date

  • Diamonds

  • Screw‑in crown

  • Transparent case back

Technical Data

  • Between lugs: 19 mm
  • Bracelet: red gold
  • Case: Red gold
  • Case diameter: 38.5 mm
  • Dial colour: White
  • Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
  • Water resistance: 15 bar (150 metres / 500 feet)

Key materials

  • Material - Red Gold

    Red Gold

  • Material - Diamonds

    Diamonds

  • Material - Mother-of-pearl

    Mother-of-pearl

  • Material - Sapphire Crystal

    Sapphire Crystal

Red Gold

Gold in its pure form (24K) is slightly reddish yellow and very soft. It is usually alloyed with other base metals for a diverse variety of uses. Considered to be the premium standard in watch and jewellery making, 18K gold (with at least 75% pure gold) provides the ultimate balance between purity and usefulness. Traditional 18K red gold is alloyed with copper-silver and offers an excellent resistance to corrosion, while being highly bio-chemically inert. It provides a beautiful hue that suits wearers even with sensitive skin.

Diamonds

Diamond is recognised as the hardest material on Earth, graded 10 on the Mohs hardness scale, and is the only gem made entirely of carbon. In nature, it can only be formed under high temperature and pressure conditions that exist within a specific depth range (~100 miles) beneath the Earth's surface. To decorate its timepieces and jewellery, OMEGA uses "Top Wesselton" white COLOUR diamonds with CLARITY ranging from pure to VVS (Very Very Small inclusions). Along with choosing the best weight in CARAT, the CUT is also carefully selected in order to maximise brightness and scintillation. It goes without saying that OMEGA is a certified member of the non-profit Responsible Jewellery Council (RJC), assuring customers that its processes involving people, materials and the environment are ethical and fair.

Mother-of-pearl

Also known as "nacre", mother-of-pearl is an organic-inorganic composite material produced by some molluscs as an inner shell layer, similar to pearls. It is strong, resilient and iridescent, with changing colours depending on the wavelengths of light at different viewing angles. Produced with exquisite skill and delicacy, OMEGA's ladies' collection offers mother-of-pearl dials of top quality, enhanced with specific attributes.

Sapphire Crystal

To really appreciate the finer details of a timepiece, OMEGA uses synthetic sapphire crystal with a highly scratch-resistant and anti-reflective treatment. Before the machining and finishing processes take place, the sapphire crystals are produced under the Verneuil process, also called flame fusion. It involves the melting of the raw substance using oxyhydrogen flame and the crystallisation of the melted droplets to form a cylinder. Graded 9 on the Mohs-hardness scale (graded 1-10), the resulting sapphire crystals are virtually scratch-proof and very hard, ensuring an unhindered vision at all times.

A new look for your watch

Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.

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Movement CALIBRE OMEGA 8501

Calibre 8501

Self-winding movement with Co-Axial escapement. Free sprung-balance, 2 barrels mounted in series, automatic winding in both directions. Oscillating mass and balance bridge in red gold. Luxury finish with exclusive Geneva waves in arabesque.

  • 60 hours Power reserve
  • Self winding
Calibre 8501

Variations Aqua Terra 150M Master Co‑Axial Chronometer Ladies' 38.5 mm

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