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Omega Seamaster Aqua Terra

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Omega Seamaster  (16219) Omega Seamaster (16219)

Omega Seamaster Aqua Terra: Conquering Land and Water

The Aqua Terra plays a special role in the Seamaster collection. It's Omega's most robust everyday watch, able to withstand depths to 150 m. Thanks to its modern master Co-Axial escapement, it's also able to withstand magnetic fields.


  • Anti-magnetic up to 15,000 gauss
  • Innovative silicon balance spring
  • Efficient master Co-Axial escapement
  • Waterproof to 150 m (500 ft, 15 bar)
  • Case made of stainless steel or titanium; bi-color or in 18-karat gold or red gold

Omega Seamaster Aqua Terra: The High-Tech Wristwatch

The watches in the Seamaster Aqua Terra collection are some of the most modern mechanical watches in the world. The sporty, yet elegant Aqua Terra >15,000 Gauss is unaffected by magnetic fields up to 15,000 gauss, making it one of the best anti-magnetic watches there is. Modern technology and materials such as silicon make this possible. Tests conducted by the watch trade press confirm that the watch is unaffected by strong magnetic fields. Yellow or red gold increase the value of some models, and those made of titanium are especially robust and lightweight. Thanks to a screw-down crown and case back, the watches are waterproof to 150 m. If you want a watch that can reach greater depths, the diving watches from the Seamaster Planet Ocean collection are waterproof to 600 m (1,960 ft, 60 bar). As it is a diving watch, the Aqua Terra features a helium escape valve at 10 o'clock.

Buying Advice

If you're on the search for an anti-magnetic watch, then the Omega Seamaster Aqua Terra is the perfect watch for you. Its anti-magnetism is made possible by the most modern caliber technology as well as silicon and titanium parts. You can wear the Aqua Terra while swimming or snorkeling. Since the watch does not feature a rotatable bezel, it has a slick, sporty, elegant look; this is where it differs from the other models in the collection. It goes just as well with a suit as it does with a polo shirt. Different case sizes ranging from 38.5 mm to 49.2 mm offer an option for every wrist. The Omega Aqua Terra costs between 1,000 and 5,000 euros. Pre-owned quartz models cost around 1,200 euros, while automatic versions cost around 2,200 euros. New models are around 3,000 euros. New models of the high-tech Aqua Terra 15,000 Gauss are in the 4,000 euro range. The special limited edition Spectre watch is a solid investment. It was introduced in 2015 in honor of the 24th James Bond film, Spectre.
Lovers of practical watches can also find the perfect watch in Omega's collections. Watches with additional features such as a second hour hand to display a second time zone (GMT) are available, as are chronographs, which can function as timers. These types of watches cost around 4,000 euros.
The Speedmaster collection is home to Omega's most famous chronographs. The Speedmaster Professional Moonwatch was the first watch on the Moon and is still to this day the official watch of NASA.

Buying Tips

  • Pre-owned quartz models starting at 1,200 euros; automatic at 2,200 euros
  • Limited Spectre edition has potential to increase in value
  • Anti-magnetic silicon pieces and Co-Axial escapement
  • Case sizes: 38.5 mm, 41.5 mm, 43 mm, and 49.2 mm

Wide variety of designs and models

The Aqua Terra line from Omega is incredibly diverse. For example, there are models with cases and bracelets made from stainless steel or titanium, 18-karat yellow or red gold, as well as bi-color models made from 18-karat gold and stainless steel. You have the choice between leather or textile armbands. The Aqua Terra XXL Small Seconds is easily spotted from far away with its impressive 49 mm diameter. Its orange gold case makes it stand out even more. Its dark, "Teak Concept" dial alludes to the deck of luxury yachts. The black leather strap brings all the elements together. The small seconds subdial is located at six o'clock and features the inscriptions "Chronometer" and "150 m/500 ft."
Omega decorates their women's watches with sparkling diamonds, either as index markers or on the bezel. White or gray mother-of-pearl dials accentuate the watch's enchanting look. Cases made of 18-karat yellow or red gold are available, as are stainless steel versions. The date display is at either six or three o'clock. You have the option between three different sizes: 30 mm, 34 mm, and 38.4 mm.

High-Tech & Anti-Magnetic

Magnetic fields pose a serious threat to mechanical movements. Parts such as the balance spring can "stick together" due to magnets, significantly affecting a watch's precision. Permanent magnets in flip charts and refrigerators also pose a threat to a watch's precision. Magnetic fields are almost unavoidable: They're in headphones, smartphones, tablets, speakers, and even induction cookers. Manufacturers began protecting their calibers from magnetism with soft iron cages in the 1930s. Today's watches often feature a special balance spring made by Nivarox which protects them from magnetic fields up to 60 gauss. In comparison: A standard household magnet has a strength of 300 to 1,000 gauss. If a watch has an inner soft iron cage, then it's protected up to 1,000 gauss. This is the case with the Rolex Milgauss, whose name indicates its level of magnetic resistance.
The story is similar with Omega as well: The Aqua Terra >15,000 Gauss tells you its level of resistance already in its name. The Swiss manufacturer was able to achieve this by creating parts made of anti-magnetic material. The balance spring is made of anti-magnetic silicon, which Omega calls Si14. This balance spring swings freely in a titanium balance wheel, which is also anti-magnetic. The engineers were also able to create a silicon escape wheel. It's made of so-called "Nivagauss," a non-ferrous alloy. Furthermore, Omega uses low-maintenance zirconium bearing jewels on the winding rotor, amongst other things. Thanks to all of these materials, the caliber barely requires any lubrication. This results in very low-maintenance movements and makes a soft iron cage superfluous. And as there's no cage to hide the movement, Omega decided on a sapphire glass case back so you can watch the caliber 8505 in action.
The automatic movement's rotor winds the double barrel. When fully wound, the power reserve lasts an impressive 60 hours, thanks to the inclusion of two barrels. The date display is located at three o'clock, and the movement also features a Co-Axial escapement instead of a Swiss anchor escapement. The Co-Axial escapement is characterized by two important qualities: It requires very little lubrication and it's very efficient, resulting in long-lasting precision. Calibers with the designation "Master Co-Axial" use the Si14 silicon balance spring. Other pioneers in the field of silicon technology include the Swiss manufacturer Ulysse Nardin.

Technical Highlights

  • Automatic caliber 8508
  • Titanium balance wheel
  • 60-hour power reserve
  • Chronometer-quality precision

The All-Purpose Champion: Omega Seamaster Aqua Terra

Omega covers a wide range of functions with the watches in their Aqua Terra collection. A screw-down crown and case back made of sapphire glass help keep the watch waterproof to 150 m; a depth rather unusual, as diving watches are required to be waterproof to at least 200 m (655 ft, 20 bar). The Aqua Terra is perfect for swimming, surfing, or snorkeling. Thanks to its all-around sporty-elegant design and use of gold, the Aqua Terra models also go well with suits or tuxedos. It was certified precise by the Official Swiss Chronometer Testing Institute (COSC). Omega's use of modern materials in the caliber such as silicon and a Co-Axial escapement not only contributes to its extraordinary precision, but also revolutionizes centuries-old watchmaking traditions.

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