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seiko prospex 62mas review

Seiko Prospex 62Mas SBDC101 Automatic Black In-Depth Review

The perfect diving companion that features a combination of classic design and modern technology. Learn the details here!
May 06, 2024

Seiko is an enterprise that may be familiar to many and is known as the company that specializes in producing watches with its own leading-edge technology movements. This company has been carrying its legacy since 1881, producing the greatest timepieces, one of which is the Seiko Prospex 62Mas.

Seiko Prospex 62Mas was introduced in 1965 as a dive watch and has been reissued and updated with modern features. This timepiece has the greatest functionality as it is designed and built with the highest standards for professionals.

One of the collections of Seiko Prospex 62Mas is the SBDC101 200M Automatic Black. It offers functionality and a classical design perfect for the underwater voyage or completing your formal look. And the special point of this timepiece is you can own this watch at an affordable price.

Interested to learn more? This article will guide you to a better understanding of Seiko Prospex 62Mas 200M Automatic Black, from the designs to the movements. Get ready to fall in love with the charm of this watch!

Get to Know with The Seiko Prospex 62Mas Collection

Seiko Prospex 62Mas collection is the first Japanese-made diving watch that features automatic mechanical movement and water resistance of up to 150 meters. As the first Japanese-made diving watch, this timepiece has proven its durability and reliability after being extensively tested in the Antarctic during the 1960s. 

Ever since, the success of the Seiko Automatic 150M set the foundation for the development of Seiko’s Prospex line of diver’s watches, which have become landmarks in the industry.

Additionally, Seiko has been producing high-quality reissues of this collection in the form of a series of restyled variations of the basic 62Mas design. 

Some of the new releases are the Seiko Prospex SPB147 with a gilt dial, the Seiko Prospex SPB143 with a gray dial, the Seiko Prospex SPB145, the limited-edition Seiko Prospex SPB149, and Seiko Prospex SBDC101.

Nevertheless, in this article, we will specifically give you the intricate details of the Seiko Prospex 62Mas 200M Automatic Black SBDC101.

You Might Also Like: Top 6 Recommendations of Divers for Every Slender Wrist

A Closer Look: Seiko Prospex 62Mas SBDC101 200M Automatic Black 

One of the collections of Prospex 62Mas, this watch is a modern take on a classic design that will transport you back to the 60s. 

This collection features upgraded automatic movement and materials that make it a reliable and durable timepiece that can withstand the toughest of conditions.

Now, let us explore the intricate details of the Seiko Prospex 62MAS 200M Automatic Black Ref. SBDC101 that surely impresses you.


This timepiece boasts style and functionality with its stunning 40.5mm stainless-steel case. Expertly crafted by professionals, the case can withstand the rigors of daily wear. The case features Seiko’s Dia-Shield coatings that provide scratch protection and greater resistance to corrosion.

The bezel is another standout feature of the case design, with minimal free play and smooth 120-click unidirectional rotations that ensure the watch is always accurate and reliable. 

Additionally, the sides of the timepiece showcase a beautiful combination of satin brush and Seiko high polishing techniques, culminating in the Zaratsu polished line on the case side that adds a modern twist to the vintage design.

The screw-down case back is satin-brushed and allows for an impressive 200m water resistance, making the 62MAS Black an excellent diving companion. 

The sterile screw-down crown at the 3 o’clock position adds to the watch’s rugged durability, while the signature tsunami emblem sets it apart from other dive watches.

Furthermore, the case of the 62MAS Black is fixed with lug holes on its sides, allowing for easy strap changes and customization. 

Overall, the Seiko 62MAS Black’s case design is a true masterpiece that balances both style and functionality.

You Might Also Like: How to Use Dive Watch Bezels: A Simple and Thorough Guide


The watch dial of this timepiece is a thing of beauty. Its sunburst gray finish and shiny black bezel exude a vintage vibe that brings back memories of the original 62Mas design.

Along with that, Seiko also added symmetrically applied markers to give the dial a more polished and modern look.

Additionally, the long-lasting Lumibrite paint used on the markers and watch hands ensures that the time is readable even in low-light situations. The watch hands themselves are also an eye-catching feature. Seiko went back to the original 1965 design for the hands, featuring a gleaming gold-accented second hand that adds a touch of class to this diver watch. 

The double-domed anti-reflective sapphire crystal used for the dial also adds to the watch’s durability and functionality while providing an unobstructed view of the time display.


Seiko is renowned for its in-house manufactured calibers. Some of the Seiko movements that are popular are the 7s and 6R movements, which are highly sought after by Seiko enthusiasts. Back in 2005, Seiko introduced the 6R15 engine, which was a derivative of the 7S26 movement.

The 6R15 movement is known for its reliability and accuracy and has been powering the SBDC051 and SBDC053 since their release three years ago. Yet, Seiko never stops innovating and constantly strives to improve.

The latest addition to their engine lineup is the 6R35 caliber, an upgrade from the reliable 6R15 engine. The 6R35 is the powerhouse behind the 62MAS Automatic Black SBDC101, making it the first Seiko timepiece to feature this new automatic caliber.

This engine operates at a frequency of 21,600 beats per hour (3 Hertz) and has hacking and hand-winding capabilities. With 24 jewels and a power reserve of 70 hours, this engine has a longer power reserve compared to the 7R and 6S engines. And, it is safe to say that Seiko has once again raised the bar with their latest engine.

All in all, the movement powering this timepiece will offer you the greatest reliability and accuracy.

Final Thought

All in All, Seiko Prospex 62Mas Automatic Black SBDC101 is a clear definition of an exquisitely designed timepiece that is paired with functionality. Additionally, this watch will offer you the greatest performance and design, as well as history.

Thus, the SBDC101 can be your perfect match if you are looking for a timepiece that is functional yet elegant.

As for the price, this collection stands at the price of $970.00 USD.

You Might Also Like: Is it Bad to Let an Automatic Watch Stop? – Maintenance Tips

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