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Seiko Prospex Hi Beat MarineMaster Pro SBEX005 Luxury Watch Review

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The Seiko Prospex Hi-Beat MarineMaster Pro SBEX005 luxury watch is the focus of a detailed review by WatchBox Reviews. Featuring a large 48.2mm titanium case with a striking blue wave dial and a sturdy titanium bracelet with a folding buckle, this watch is designed for professional diving capabilities. With functions including hours, minutes, seconds, and date, along with a thickness of 19.7mm and a lug-to-lug distance of 53.2mm, this watch provides all the necessary details for diving enthusiasts. The review, available on their website, showcases the watch’s impressive features, such as its 1000-meter water resistance rating, a Seiko 9S85 movement with a power reserve of 55 hours and a beat rate of 36,000 vibrations per hour. Additionally, the watch offers anti-fog technology, a dye shield, and remarkable 16,000 ampere per meter anti-magnetism, making it a complete diving tool.

Overview of Seiko Prospex Hi Beat MarineMaster Pro SBEX005

Introduction to the watch

The Seiko Prospex Hi Beat MarineMaster Pro SBEX005 is a professional diver’s watch that combines outstanding functionality with sleek design. Built to withstand the depths of the ocean, this timepiece is a reliable companion for any diving expedition. With its exceptional features and high-performance movement, the MarineMaster Pro SBEX005 is a timepiece that truly lives up to the Seiko Prospex legacy.

Features of the watch

The MarineMaster Pro SBEX005 boasts an array of impressive features that set it apart from other diver’s watches on the market. From its titanium case to its powerful lume brightness, this timepiece is a testament to Seiko’s commitment to creating high-quality and durable watches.

Professional diving capabilities

Designed for professional divers, the MarineMaster Pro SBEX005 offers advanced diving capabilities. With a water resistance of 1000 meters, this watch provides unparalleled protection against the pressures of the deep sea. Its sophisticated seals ensure that no water can penetrate the case, eliminating the need for a helium escape valve. Whether you are exploring the depths or navigating through underwater caves, the MarineMaster Pro SBEX005 is up to the task.

Design by Hirokazu Gaku

The design of the MarineMaster Pro SBEX005 was entrusted to renowned watch designer Hirokazu Gaku. With his expertise and attention to detail, Gaku has created a timepiece that is both functional and visually striking. The blue wave dial pays homage to the ocean, while the titanium case provides a lightweight and durable housing for the watch. Every aspect of the design has been carefully considered to ensure that the MarineMaster Pro SBEX005 stands out among its peers.

Case and Bracelet

Titanium case

The MarineMaster Pro SBEX005 features a titanium case, making it both lightweight and resistant to corrosion. Titanium is known for its exceptional strength-to-weight ratio, and Seiko has utilized this material to create a case that can withstand the rigors of professional diving.

Blue wave dial

The vibrant blue wave dial is not only aesthetically pleasing but also serves a practical purpose. The wave pattern provides excellent visibility, even in low-light conditions, allowing divers to easily read the time at a glance. This attention to detail is a testament to Seiko’s commitment to functionality and readability.

Titanium bracelet with folding buckle

To ensure a comfortable fit and maximum durability, the MarineMaster Pro SBEX005 is equipped with a titanium bracelet. The folding buckle allows for easy adjustment and secure fastening, ensuring that the watch stays in place even during the most rigorous underwater activities.

Riveted end links

The addition of riveted end links to the bracelet enhances its overall strength and stability. This feature prevents the links from separating, even under extreme pressure. The attention to detail in the design of the bracelet is reflective of Seiko’s dedication to creating watches that can withstand the toughest conditions.

Lever lock system

The MarineMaster Pro SBEX005 features a lever lock system that ensures a secure fit and prevents accidental opening of the clasp. This feature is particularly important for divers, as it provides peace of mind knowing that the watch will stay securely fastened throughout the dive.

Polished case length

The case of the MarineMaster Pro SBEX005 is polished to a high sheen, adding to its overall aesthetic appeal. This attention to detail in the finishing of the case showcases Seiko’s commitment to craftsmanship and quality.

Recessed sapphire crown

The recessed sapphire crown of the MarineMaster Pro SBEX005 provides added protection against accidental impacts. This feature is particularly useful for divers, as it minimizes the risk of damage to the crown while underwater. The recessed design also adds to the sleek and streamlined appearance of the watch.


Hours, minutes, and seconds

The MarineMaster Pro SBEX005 displays the hours, minutes, and seconds on its dial, allowing for precise timekeeping. Each hand is designed to be easily distinguishable, ensuring that the watch can be read at a glance, even in challenging conditions.

Date display

In addition to the timekeeping function, the MarineMaster Pro SBEX005 also features a date display. The date window is located at the 3 o’clock position, providing a convenient way to keep track of the current date while wearing the watch.

Seiko Prospex Hi Beat MarineMaster Pro SBEX005 Luxury Watch Review

Size and Dimensions

Thickness of the watch

The MarineMaster Pro SBEX005 has a thickness of XXmm, striking the perfect balance between functionality and comfort. The slim profile of the watch makes it suitable for everyday wear, while still providing the durability and water resistance required for professional diving.

Lug-to-lug distance

The lug-to-lug distance of the MarineMaster Pro SBEX005 is XXmm, ensuring a comfortable fit on a variety of wrist sizes. The watch sits securely on the wrist, allowing for unrestricted movement during dives and other activities.

Water Resistance

1000-meter water resistance

One of the standout features of the MarineMaster Pro SBEX005 is its impressive water resistance of up to 1000 meters. This water resistance level surpasses the requirements for professional diving, making the watch a reliable companion for even the most challenging underwater expeditions.

Sophisticated seals

To achieve its exceptional water resistance, the MarineMaster Pro SBEX005 is equipped with sophisticated seals that ensure a watertight seal between the case and the crystal. These seals are meticulously designed and tested to withstand the pressures of deep-sea diving, providing peace of mind to the wearer.

No need for helium escape valve

Unlike many other professional diver’s watches, the MarineMaster Pro SBEX005 does not require a helium escape valve. Seiko’s precise engineering and attention to detail in the watch’s construction eliminate the need for this feature, further simplifying the design and reducing the risk of potential failure points.


Seiko 9S85 movement

At the heart of the MarineMaster Pro SBEX005 is the Seiko 9S85 movement, a high-performance caliber that delivers exceptional accuracy and reliability. This movement is designed and manufactured in-house by Seiko, showcasing the brand’s expertise in watchmaking.

High-performance caliber

The Seiko 9S85 movement is a high-performance caliber that exceeds the standards set by the Swiss industry. It is crafted with meticulous attention to detail and undergoes rigorous testing to ensure its precision and longevity. The movement is known for its exceptional accuracy, even in the most challenging conditions.

55-hour power reserve

One of the impressive features of the Seiko 9S85 movement is its 55-hour power reserve. This extended power reserve ensures that the watch will continue to run even when not being worn, making it a practical choice for everyday wear.

36,000 vibrations per hour beat rate

The MarineMaster Pro SBEX005 features a high beat movement with a beat rate of 36,000 vibrations per hour. This rapid beat rate provides a smooth and precise sweep of the second hand, enhancing the overall accuracy of the watch.

Additional Features

Anti-fog technology

The MarineMaster Pro SBEX005 is equipped with anti-fog technology, ensuring that the watch remains clear and readable even in humid or wet conditions. This feature is particularly useful for divers, as it prevents the dial from fogging up during underwater activities.

Dye shield

To protect the vibrant blue wave dial from fading over time, the MarineMaster Pro SBEX005 is coated with a dye shield. This protective coating enhances the longevity of the dial’s color, allowing it to retain its striking appearance for years to come.

16,000 ampere per meter anti-magnetism

The MarineMaster Pro SBEX005 is highly resistant to magnetic interference, thanks to its impressive anti-magnetic properties. With a rating of 16,000 ampere per meter, the watch can withstand strong magnetic fields without losing its accuracy or functionality.

Powerful lume brightness

Seiko is renowned for its powerful and long-lasting lume, and the MarineMaster Pro SBEX005 is no exception. The luminescent hands and hour markers ensure excellent legibility in low-light or dark environments, making this watch a reliable companion for any diving adventure.

Watch Review

Complete details in the review

For a more comprehensive understanding of the Seiko Prospex Hi Beat MarineMaster Pro SBEX005, a detailed review is available on the WatchBox Reviews website. This review provides in-depth analysis and commentary on the watch’s design, features, and performance, allowing potential buyers to make an informed decision.


With its exceptional water resistance, high-performance movement, and professional diving capabilities, the Seiko Prospex Hi Beat MarineMaster Pro SBEX005 is a timepiece that combines form and function. Whether you are a professional diver or a watch enthusiast looking for a reliable and stylish timepiece, the MarineMaster Pro SBEX005 is a worthy investment. With its sleek design and impressive features, this watch is a testament to Seiko’s dedication to craftsmanship and innovation.

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