Seamaster Aqua Terra 150M 41 mm, Sedna™ gold on leather strap

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The Seamaster Aqua Terra is a superb tribute to OMEGA’s rich maritime heritage. In this 41mm model, the symmetrical case has been crafted from 18K Sedna™ gold, with a wave-edged design featured on the back.

The brown dial is sun-brushed and is distinguished by a horizontal “teak” pattern which is inspired by the wooden decks of luxury sailboats. There is also a date window at 6 o'clock and 18K Sedna™ gold hands and indexes filled with white Super-LumiNova.

Presented on a brown leather strap, this certified chronometer is powered by the OMEGA Master Chronometer calibre 8901, certified at the industry’s highest standard by the Swiss Federal Institute of Metrology (METAS).

Reference: 220.53.41.21.13.001
Between lugs Open Case Measurement Modal: 20 mm
Lug‑to‑lug Open Case Measurement Modal: 47.9 mm
Thickness Open Case Measurement Modal: 13.2 mm
Case diameter Open Case Measurement Modal: 41 mm
Case: Sedna™ gold
Dial colour: Brown
Crystal: Domed scratch‑resistant sapphire crystal with anti‑reflective treatment on both sides
Water resistance: 15 bar (150 metres / 500 feet)
Total product weight (approx.): 133 g
Calibre: Omega 8901
Movement Type: Self winding
Power reserve: 60 hours

Strap color: Brown
Strap type: Leather strap
Strap surface: Alligator leather
Buckle type: Foldover clasp
Buckle material: Sedna™ Gold

Product sheet

Key materials

Sedna^TM Gold
Sapphire Crystal

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Sedna^TM Gold

OMEGA has been using the exclusive 18K Sedna^TM Gold, its own fiery rose gold alloy, since 2012. Named after Sedna, an orbiting planetoid that has been described as one of the reddest in the solar system, Sedna^TM Gold not only bears all the standard characteristics of other 18K golds, but it also offers high resistance to the fading of colour and lustre over time. Its unique composition includes copper and palladium for colour and stability.
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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.

Sedna^TM Gold

OMEGA has been using the exclusive 18K Sedna^TM Gold, its own fiery rose gold alloy, since 2012. Named after Sedna, an orbiting planetoid that has been described as one of the reddest in the solar system, Sedna^TM Gold not only bears all the standard characteristics of other 18K golds, but it also offers high resistance to the fading of colour and lustre over time. Its unique composition includes copper and palladium for colour and stability.

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.

The advantages
of this watch

Inside this timepiece are the revolutionary components that guarantee the highest standards of performance. From the Co-Axial escapement for long-lasting precision, to the silicon balance spring for superior anti-magnetism, OMEGA has conquered every challenge that matters.

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Master Chronometer Certified

Superior Precision

Twice as precise as any officially certified chronometer

Our Master Chronometer watches are tested and certified twice. First, the movement is Chronometer-certified according to international standard ISO3159, requiring a precision of -4/+6 second per day, following the tests at the Official Swiss Chronometer Control (COSC). Then, the watch head and its movement undergo eight Master Chronometer tests set by the Swiss Federal Institute of Metrology (METAS) with criteria of 0/+5 seconds per day.

Discover more about Master Chronometer
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Master Chronometer Certified

Anti-Magnetic

Proprietary anti-magnetic materials

Everyday items such as mobile phones, metal clasps on handbags, laptops, MRI, induction hobs or automatic doors; subject a watch to magnetic fields and can affect its performance. To prevent the risk of permanent deviations of up to several minutes a day we've conceived movements with antimagnetic materials, such as the silicon balance spring, capable of withstanding the highest fields.

Discover more about Master Chronometer
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Master Chronometer Certified

Water-resistance

To ensure the integrity of our timepieces at depth, not just some but all watches are fully immersed in water and pressure is applied up to the point of the guaranteed water resistance. By submerging each watch in water we have chosen – yet again - to exceed normal testing standards.

Discover more about Master Chronometer
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5-Year Warranty

In our quest to raise industry standards and push the boundaries of quality, all OMEGA watches are offered with a full 5-year warranty. This customer promise shows the confidence we have in the excellence of our timepieces, and provides extra trust and assurance when choosing your watch.
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Less servicing

Expect fewer visits to the service centre. The Co-Axial escapement is designed to reduce friction inside the movement. As a result, less lubrication is needed and hence less servicing. Compared to non-Co-Axial watches, the intervals between getting your watch serviced will be much longer.
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Shock-resistance

During the homologation process, OMEGA watches are tested to the extreme. This phase includes shock examinations, to confirm reliability and to check that its precision is maintained after a severe impact. All OMEGA timepieces are designed to withstand shocks corresponding to a 1-metre drop on a hard wooden floor. For a standard 150g timepiece, this sudden and rapid acceleration is an equivalent force of up to 5,000 G on the watch head.

Movement Calibre OMEGA 8901

Self-winding movement with Co-Axial escapement. Certified Master Chronometer, approved by METAS, resistant to magnetic fields reaching 15,000 gauss. Free-sprung balance with silicon balance spring, two barrels mounted in series, automatic winding in both directions. Time zone function. 18K Sedna™ gold rotor and balance bridge and luxury finish with Geneva waves in arabesque.

Self winding
60 hours Power reserve
Frequency 3,5 Hz

Seamaster Aqua Terra 150M 41 mm, Sedna™ gold on leather strap

Contact a boutique

Thank you for your interest

Key materials

Sedna^TM Gold

Sapphire Crystal

Sedna^TM Gold

Sapphire Crystal

Sedna^TM Gold

Sapphire Crystal

A new look for your watch

The advantages
of this watch

Superior Precision

Anti-Magnetic

Water-resistance

5-Year Warranty

Less servicing

Shock-resistance

Superior Precision

Anti-Magnetic

Water-resistance

5-Year Warranty

Less servicing

Shock-resistance

Movement Calibre OMEGA 8901

Seamaster Aqua Terra 150M 41 mm, Sedna™ gold on leather strap

Contact a boutique

Thank you for your interest

Key materials

SednaTM Gold

Sapphire Crystal

SednaTM Gold

Sapphire Crystal

SednaTM Gold

Sapphire Crystal

A new look for your watch

The advantages of this watch

Superior Precision

Anti-Magnetic

Water-resistance

5-Year Warranty

Less servicing

Shock-resistance

Movement Calibre OMEGA 8901

Sedna^TM Gold

Sedna^TM Gold

Sedna^TM Gold

The advantages
of this watch