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Omega Seamaster Aqua Terra 150M Review

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The Omega Seamaster Aqua Terra 150M is a highly desirable timepiece that offers a blend of style, functionality, and durability. Encased in 41mm of stainless steel, this watch features a striking blue dial and is paired with a matching blue rubber strap. It boasts hours, minutes, seconds, and date functions, making it a versatile option for any occasion. With a thickness of 13.5mm and a lug-to-lug measurement of 47.5mm, this Omega watch offers a comfortable fit on the wrist.

Case and Dial

Size and Design

The size and design of a watch’s case and dial are crucial elements in determining its overall aesthetic appeal and functionality. When it comes to the size of the case, you want to strike the right balance between being eye-catching yet not overwhelming. The 2017 model of the watch features a 42mm case, which is often considered the sweet spot for most wrist sizes. This size ensures that the watch stands out on your wrist without appearing too bulky or cumbersome.

In terms of design, the case of the watch is exquisitely crafted with attention to detail. The smooth curves and polished finish give the watch an elegant and sophisticated look, while the brushed surfaces add a touch of sportiness. The design is not overly busy or cluttered, but rather minimalist and clean, allowing the dial to take center stage.

Crown and Crown Guards

The crown of a watch may seem like a small and insignificant component, but it plays a vital role in the functionality and usability of the timepiece. The 2017 model features a larger, more prominent crown with an improved grip, making it easier to wind and set the watch. The crown guards have been removed, giving the watch a sleeker and more streamlined look.

The absence of crown guards also allows for a smoother and more comfortable wearing experience. With the crown no longer protruding from the case, the watch sits closer to the wrist, reducing the likelihood of it catching on clothing or other objects.

Date and Teak Deck Dial

One of the notable changes in the 2017 model is the relocation of the date display to a more traditional position at the 6 o’clock position. This change enhances the symmetry of the dial and provides a more balanced aesthetic. Additionally, the date window features a magnifying lens for easy legibility.

The teak deck dial is another unique feature of the watch. Inspired by the beautiful wooden decks found on luxury yachts, the dial features an intricate horizontal pattern that adds depth and visual interest. This design element not only sets the watch apart aesthetically but also pays homage to the brand’s maritime heritage.

Indices and Hands

The indices and hands of a watch are essential for legibility and timekeeping accuracy. In the 2017 model, the indices and hands have been meticulously designed and applied, ensuring optimal visibility in various lighting conditions. The indices are luminescent, allowing for easy reading in low-light situations.

The hour and minute hands are also coated with luminescent material, further enhancing legibility. The second hand features a contrasting color to differentiate it from the other hands, making it easy to track the seconds accurately. The attention to detail in the design and execution of the indices and hands is a testament to the brand’s commitment to precision and functionality.

Water Resistance

Water resistance is a crucial factor to consider when choosing a watch, especially if you plan on wearing it during water-related activities. The 2017 model boasts an impressive water resistance rating of 300 meters, making it suitable for recreational diving and other water sports.

To achieve this level of water resistance, the watch undergoes rigorous testing and sealing procedures. Each watch is carefully inspected to ensure it meets the brand’s stringent quality standards. With its high water resistance rating, this watch is not only a stylish accessory but also a reliable companion for aquatic adventures.

Strap and Clasp

Strap Design

The strap of a watch not only serves a functional purpose but also contributes to its overall aesthetic appeal. The 2017 model features a meticulously crafted strap that combines style and durability. Made from high-quality materials, the strap is designed to withstand the rigors of daily wear while maintaining its luxurious look.

The strap is available in various colors and materials, allowing you to customize your watch to suit your personal style. Whether you prefer a classic leather strap or a sporty rubber strap, the options are vast and cater to a wide range of preferences.

Crosshatch Pattern and Contrasting Stitch

One of the distinctive features of the strap is the crosshatch pattern. This intricate pattern adds texture and visual interest to the strap, elevating its overall aesthetic appeal. The contrasting stitch further enhances the design and complements the dial and case.

The combination of the crosshatch pattern and contrasting stitch creates a dynamic and visually striking strap that sets this watch apart from others in its class. It’s these small details that make a significant difference in the overall look and feel of a timepiece.

Integration with the Case

The integration of the strap with the case is crucial for both aesthetics and wearability. The 2017 model achieves a seamless integration, ensuring that the strap flows smoothly into the lugs of the case. This creates a cohesive and harmonious look, where the strap appears as a natural extension of the case.

The attention to detail in the design and execution of the strap integration showcases the brand’s commitment to producing high-quality watches that not only look great but also provide a comfortable wearing experience.

Deploying Clasp

The deploying clasp is an essential component of a watch strap, as it securely fastens the timepiece to your wrist. The 2017 model features a deploying clasp that is easy to use and provides a secure fit. The clasp is designed to be sturdy and reliable, ensuring that the watch stays in place even during vigorous activities.

With its user-friendly design, the deploying clasp allows for effortless adjustment of the strap length to achieve the perfect fit. This feature is particularly beneficial for those with varying wrist sizes or those who prefer a snug or loose fit.


Wrist Size

When it comes to wearability, the size of the watch’s case plays a crucial role. The 2017 model’s 42mm case is a versatile size that is suitable for a wide range of wrist sizes. Whether you have a smaller or larger wrist, this watch will fit comfortably and look proportionate.

It’s important to consider your wrist size when choosing a watch, as the wrong size can make the watch appear awkward or uncomfortable to wear. The 42mm case strikes the right balance between being bold and eye-catching without overpowering the wrist.


Comfort is paramount when it comes to wearing a watch daily. The 2017 model prioritizes comfort with its thoughtful design and construction. The case is ergonomically shaped to conform to the natural curves of the wrist, ensuring a snug fit and minimizing any potential discomfort.

The strap is also designed with comfort in mind. It is made from soft and supple materials that feel gentle against the skin. The deploying clasp, with its smooth edges and adjustable fit, adds to the overall comfort of the watch.

Fit with Sleeves or Cuffs

Another aspect to consider when evaluating the wearability of a watch is how it fits with different types of clothing. The 2017 model’s sleek and streamlined design allows it to effortlessly slide under sleeves or cuffs, making it suitable for both casual and formal occasions.

The balanced proportions of the watch prevent it from appearing too bulky or obtrusive when worn with long sleeves. Whether you’re dressed in a suit or a more relaxed outfit, this watch will complement your style and enhance your overall look.

Case Changes for 2017

Relocation of Date and Teak Deck Dial

In the 2017 model, the date display has been relocated to the 6 o’clock position, resulting in a more traditional and symmetrical arrangement. This change improves the overall balance of the dial and enhances its aesthetic appeal. The date window also features a magnifying lens for enhanced legibility.

The teak deck dial, inspired by luxurious yacht decks, remains a distinctive feature of the watch. The horizontal pattern adds visual depth to the dial, giving it a unique and eye-catching appeal. The relocation of the date and retention of the teak deck dial demonstrate the brand’s commitment to timeless design and functionality.

Removal of Crown Guards

The removal of crown guards in the 2017 model contributes to a sleeker and more streamlined appearance. The absence of crown guards not only enhances the visual appeal of the watch but also improves the wearing experience. Without crown guards, the watch sits closer to the wrist and offers a more comfortable fit.

This design change not only improves the aesthetics but also illustrates the brand’s commitment to continual refinement and improvement. The attention to even the smallest details is evident in the thoughtfully executed removal of crown guards.

Larger Crown with Improved Grip

The 2017 model features a larger crown with an enhanced grip, making it easier to wind and set the watch. The improved grip ensures that the crown can be manipulated effortlessly, even in challenging conditions.

The larger crown also adds a touch of sophistication to the watch’s overall design. It serves as a focal point and reinforces the brand’s attention to detail and commitment to producing high-quality timepieces.

Screw Down Crown

To enhance its water resistance capabilities, the 2017 model incorporates a screw-down crown. This engineering feature ensures that the watch remains watertight and protected against moisture infiltration.

The screw-down crown adds an extra layer of reliability and reassurance, particularly for those who engage in water-related activities. It offers peace of mind, knowing that the watch can withstand exposure to water without compromising its functionality or integrity.

Water Resistance Rating

The 2017 model boasts an impressive water resistance rating of 300 meters, making it suitable for recreational diving and other water sports. This upgraded water resistance rating allows for increased versatility and durability, ensuring that the watch can accompany you on your aquatic adventures.

To achieve this high water resistance rating, the watch undergoes extensive testing and sealing procedures. Each watch is meticulously inspected to ensure that it meets the brand’s stringent quality standards. The increased water resistance rating reflects the brand’s dedication to producing reliable and robust timepieces.


Introduction of Caliber 8900

The introduction of Caliber 8900 marks a significant milestone for the 2017 model. This self-winding movement is renowned for its precision, accuracy, and durability. It is a testament to the brand’s commitment to innovation and technical excellence.

Caliber 8900 features a co-axial escapement, which ensures enhanced accuracy and stability over time. The movement is also equipped with dual mainspring barrels, providing a significant power reserve of up to 60 hours. This makes the watch exceptionally reliable and reduces the need for frequent winding.

Master Chronometer Certification

The 2017 model has earned the prestigious Master Chronometer certification, which is awarded to watches that undergo rigorous testing and meet the highest industry standards. This certification guarantees that the watch is not only accurate but also highly resistant to magnetic fields and other external influences.

To achieve the Master Chronometer certification, the watch is subjected to a series of tests that encompass accuracy, precision, magnetic resistance, and power reserve. This certification is a testament to the watch’s superior craftsmanship and performance.

Six-Position Adjustment

Caliber 8900 boasts a six-position adjustment feature, allowing for precise timekeeping in various positions. This adjustment ensures that the watch maintains optimal accuracy regardless of how it is positioned on the wrist.

The ability to adjust the watch in six positions minimizes any deviation in timekeeping due to the effects of gravity or movement. This attention to detail and commitment to accuracy further reinforces the brand’s dedication to excellence.

Case Testing

To ensure the highest level of reliability and durability, every watch undergoes rigorous case testing. This testing includes exposure to extreme temperatures, pressure, and humidity.

The case is carefully inspected to ensure that it remains watertight and resistant to external elements. The rigorous case testing guarantees that the watch can withstand the rigors of everyday wear and various environmental conditions.

Bi-Directional Automatic Winding

Caliber 8900 features a bi-directional automatic winding system, which allows for efficient winding of the watch. The movement harnesses the motion of the wearer’s wrist to power the watch and maintain its accuracy.

The bi-directional automatic winding system ensures that the watch remains wound and ready for use, even during periods of limited wrist movement. This feature enhances the convenience and practicality of the watch, ensuring that it is always ready to accompany you on your daily adventures.

Dual Mainspring Barrels

The inclusion of dual mainspring barrels in Caliber 8900 provides a significant power reserve of up to 60 hours. This extended power reserve ensures that the watch continues to function accurately and reliably even when not worn for several days.

The use of dual mainspring barrels also improves the overall stability and performance of the movement. The watch’s power reserve is a testament to its mechanical prowess and high-quality construction.

Shock Resistance

Caliber 8900 is engineered to be highly resistant to shocks and vibrations, ensuring that the watch maintains its accuracy and reliability even in demanding conditions. This shock resistance is achieved through meticulous design and the use of advanced materials.

The watch’s ability to withstand shocks and vibrations is essential for those who lead an active lifestyle or engage in activities that may subject the watch to sudden movements or impacts. The brand’s commitment to shock resistance reflects its dedication to producing watches that can withstand the test of time.


In today’s modern world, where we are surrounded by magnetic fields, anti-magnetism has become a vital feature in watches. Caliber 8900 incorporates anti-magnetic technology, ensuring that the movement remains unaffected by magnetic fields up to 15,000 Gauss.

The anti-magnetic properties of the watch ensure accurate timekeeping, as magnetic fields can disrupt the movement and lead to significant time deviations. This feature is particularly useful for individuals who work in environments with high magnetic fields or frequently come into contact with magnetic objects.

Co-Axial Escapement

Caliber 8900 is equipped with a co-axial escapement, a revolutionary technology invented and patented by the brand. The co-axial escapement minimizes friction and reduces the need for lubrication, resulting in improved accuracy and reliability.

The use of a co-axial escapement significantly reduces the wear and tear on the movement, leading to increased longevity and decreased need for servicing. This innovative technology sets the watch apart from its competitors and reinforces the brand’s commitment to pushing the boundaries of watchmaking.

Co-Axial Escapement and Impulse wheel

Invention and Industrialization

The co-axial escapement is one of the greatest innovations in watchmaking history. It was invented by the brand’s master watchmaker, and its design has since been industrialized and implemented in various watch models.

The co-axial escapement revolutionized traditional watchmaking by reducing friction and improving the efficiency and accuracy of the movement. It has become a hallmark feature of the brand’s watches, reflecting its commitment to technical excellence and innovation.

Tri-Level Design

The co-axial escapement and impulse wheel feature a unique tri-level design, which optimizes the interaction between the components and ensures that the watch maintains accuracy over time. The three levels work together seamlessly to deliver precise and reliable timekeeping.

The tri-level design not only enhances the performance of the watch but also adds a visually striking element to the movement. The intricate interplay between the different levels showcases the brand’s dedication to both form and function.

Maintenance Intervals

The co-axial escapement and impulse wheel contribute to longer maintenance intervals compared to traditional watch movements. The reduced friction and improved efficiency of the co-axial escapement minimize the need for frequent servicing, saving both time and money for the watch owner.

The extended maintenance intervals are a testament to the durability and reliability of the watch. It ensures that the watch remains in optimal working condition for more extended periods, reducing the inconvenience of regular servicing.

Five-Year Warranty

To further demonstrate their confidence in the quality and reliability of their watches, the brand offers a five-year warranty on all timepieces equipped with the co-axial escapement and impulse wheel. This warranty covers any defects in materials or craftsmanship, further reassuring customers of the watch’s durability and long-term performance.

The five-year warranty is a testament to the brand’s commitment to producing high-quality timepieces that stand the test of time. It reflects their dedication to customer satisfaction and reinforces their reputation as a trusted and reputable watchmaker.


In conclusion, the 2017 model of this watch represents the embodiment of elegance, precision, and reliability. The carefully designed case and dial, combined with the improved strap and clasp, ensure both visual appeal and wearability. The movement, featuring the innovative caliber 8900 with the renowned co-axial escapement, delivers exceptional accuracy, durability, and resistance to external influences.

Every aspect of this watch has been meticulously crafted and engineered to meet the highest standards of quality and performance. The 2017 model showcases the brand’s unwavering commitment to innovation, craftsmanship, and customer satisfaction.

Whether you are a watch enthusiast, a connoisseur, or simply searching for a timepiece that combines style and functionality, this watch is a remarkable choice. With its timeless design, advanced features, and exceptional performance, it is sure to make a lasting impression and serve as a reliable companion for a lifetime.

I'm, your trusted guide to the captivating world of horology. At Mt. Watches, I am dedicated to providing you with a wealth of knowledge and resources when it comes to timepieces. Regardless of your expertise level, whether you're just starting your horological journey or have a refined taste for luxury watches, I have tailor-made content for you. My comprehensive guides, informative how-to articles, and expert reviews are carefully curated to enlighten, educate, and inspire you. From delving into the complexities of watch mechanics to staying updated on the freshest trends in luxury wristwear, your exploration of time begins and reaches the pinnacle of wisdom here at Mt. Watches.

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