Skip to main content

The Manual may earn a commission when you buy through links on our site.

Seiko watches news: Seiko adds a GMT function to its Prospex Alpinist

These are the first non-limited edition Seiko Alpinist GMT watches

Seiko Prospex Alipinist GMT blue
Seiko

When it comes to watches for men, Seiko has long been a name that resonates with both enthusiasts and the uninitiated. The brand’s rich history and commitment to quality timepieces have solidified its place in the world of horology.

In the realm of Seiko watches, the Prospex collection stands out as a symbol of adventure, durability, and precision. And now, Seiko has added a new twist to its iconic Prospex Alpinist series, introducing the Seiko Prospex Alpinist GMT. But it’s not just any GMT watch; it’s a timepiece that takes you on a journey, even if you’re just sitting at your desk.

Recommended Videos

The Prospex Alpinist GMT unveiled

The Seiko Prospex Alpinist collection has always been about rugged elegance and the spirit of exploration. The addition of a GMT function to the Prospex Alpinist takes that spirit to new heights. GMT watches have long been favored by travelers and globetrotters for their ability to track multiple time zones. Seiko has embraced this feature, and the result is a timepiece that appeals to outdoor enthusiasts and people who value aesthetics, as well as functionality.

The Seiko Prospex Alpinist GMT comes in two captivating dial options: a classic Black (SPB379) and a stunning Sunburst Blue (SPB377). The dial features applied indices, luminescent dots for excellent visibility in low-light conditions, a date window for daily functionality, and a compass for the explorer in you. The compass is a nod to the  SeikoAlpinist’s heritage, as it has always been a go-to tool for mountaineers navigating their way through the wilderness.

Seiko Prospex Alipinist GMT blue
Seiko

Built for adventure

Seiko knows that its Prospex Alpinist series is synonymous with adventure, and it has made sure the GMT version lives up to that reputation. The case material is rugged stainless steel, which not only looks good but can take a beating. The case dimensions are just right at 39.5 mm, making it versatile for various wrist sizes. To protect that beautiful dial, Seiko has used sapphire crystal, known for its exceptional scratch resistance.

But what sets the Seiko Alpinist GMT apart is the movement inside. It’s powered by the Seiko 6R54 self-winding GMT caliber, and beats at 21,600 vibrations per hour, ensuring precise timekeeping. It boasts a substantial 72-hour power reserve, meaning you can take this watch on a weekend getaway, and it will keep ticking through your busy days without missing a beat.

The water resistance is 200 meters, making it suitable for water-based escapades. Whether you’re diving into the deep blue or caught in a sudden downpour, the Prospex Alpinist GMT can certainly handle it. And if you’re looking for versatility in style, the watch comes with two strap options: a sophisticated blue leather strap for SPB377 or a classic black leather strap for SPB379.

Seiko watches has paid attention to the details that matter. The case back is a screw-in display back, allowing you to admire the intricate movement within. It’s transparent, offering a peek into the heart of your watch. The sapphire crystal on the front is treated with an anti-reflective coating, reducing glare and ensuring that the dial remains visible in all conditions.

Seiko Prospex Alipinist GMT black
Seiko

The final word

In the world of luxury watches, Seiko has always been a brand that delivers exceptional value, and the Prospex Alpinist GMT is a testament to this commitment. The addition of the GMT function elevates its practicality, and the design stays true to the Alpinist’s heritage, honoring its roots. So, whether you’re planning an expedition to the mountains, a business trip to a different time zone, or just an evening out with friends, the Seiko Prospex Alpinist GMT is definitely up for the challenge.

Sarah Veldman
Sarah has been a freelance writer for over 7 years now, having started while she was living out of a suitcase and traveling…
Topics
From regatta to deep sea: The top maritime watches for serious collectors
From regatta-ready chronographs to deep-sea divers, these five luxury watches dominate the high seas.
The Rolex Yacht Master series, up close.

When navigating high society and the open seas, possessing a luxury sailing watch becomes a statement piece that opens doors, recognized as a masterclass in engineering. There is a wide range of exceptional maritime watches on the market today, but the best sailing watches are able to impeccably combine precision tide tracking, anti-corrosive robustness, and exceptional accuracy, all while retaining an elevated look of sophistication. No matter what your current status is as a sailor, sea explorer, or collector, these luxury maritime watches from top luxury brands have been designed to make a statement. 

Rolex Yacht-Master II: The regatta chronograph

Read more
Casio brings back its impossibly small ring watch
Second chance: Casio's miniature ring watch returns to American market
Casio Ring Watch CRW001-1

Casio announced the US restock of its Ring Watch CRW001-1 on July 1st, bringing back the small timepiece that sold out quickly after it came out in America in late 2024. The restock follows successful lottery sales in the UK and Japan, showing that people around the world want this digital watch that goes on a finger.
The Ring Watch CRW001-1 shows Casio's bold way of looking at wearable technology—it shrinks standard digital watch functions into a ring that measures only 25.2mm across and weighs 16 grams. Even though it is small, the timepiece keeps necessary features, including support for two time zones, a stopwatch that measures 1/100th of a second, and hourly flash alerts.
Casio US confirmed the July 1st restock on Instagram, saying the watch would only be available through the brand's online store, not in physical shops. Compared to the lottery systems in other places, American customers will buy the watch in the order they arrive—this might cause a lot of competition among people who collect things and those who like technology.
The small digital screen has a backlight so you can see it in different light. The stainless steel build makes it sturdy, even though it is small. The ring fits size 22 fingers (US 10.5, EU U), and you can adjust it down to size 19 (19mm inner diameter) or size 16 (18mm inner diameter).
The engineering needed to put normal digital watch parts into a ring shape shows how well they made it. The 1/100th second stopwatch is as exact as bigger Casio watches. Travelers who want to check the time without others knowing will like the two-time zone feature.
Casio did not say the exact restock time but told interested customers to sign up for email notifications about when it would be ready. That way may help manage the internet traffic while making sure serious buyers learn about buying chances in time.
The Ring Watch's appeal shows more people are interested in other types of wearable devices, not just ones worn on the wrist. Casio's good result with this unusual approach shows that people want new watch designs that question common ideas about what a watch should look like.
The quick sellout after the US launch, along with international lottery systems, suggests that collectors are very interested and that the watch might sell for more later. Casio has not said anything about more restocks in other places after the July 1st US availability, keeping the watch special.
This restock gives American buyers a second chance to get one of the most noticeable wearable technology releases of the year, bringing together Casio's history with digital watches and its push to make things very small.

Read more
Grand Seiko’s claw-inspired watch costs $16,400
Angular evolution: Grand seiko's tokyo lion tentagraph features brilliant hard titanium construction
Grand Seiko Tokyo Lion

Grand Seiko added a watch to its Tokyo Lion collection— the Sport Collection Tokyo Lion Tentagraph. This watch comes with the brand's first mechanical chronograph movement and holds to the angular design that has set the series apart since 2019. The watch costs $16,400 and will be available in August 2025. This 43mm watch shows a clear step forward for the collection.
The lion sign stays important to Grand Seiko's identity—it stands for how easy a watch is to read, how long it lasts, how comfortable it feels, and how good it looks. This symbol has been part of the brand's history since 1960. The Tokyo Lion collection turns this symbol into a bold, angular shape that copies a lion's paw through its geometric form and surface finishes.
The newest Tentagraph watch shows more of the feline idea. Its surfaces have hairline finishes that look like claws, and this design brings out cat-like shapes across the case. The watch measures 43mm across and 15.6mm thick—these large sizes catch the eye right away. The watch feels good to wear because of how it is shaped to the body.
Grand Seiko uses Brilliant Hard Titanium in the Sports Collection for the first time. This metal is twice as hard as regular stainless steel. The alloy looks brighter than common titanium and also resists rust and scratches better, which is needed for sports watches.
The chronograph buttons have a new shape—this change makes them easier to use when someone is active. The three small dials at 3, 6, and 9 o'clock look three-dimensional. A Lumibrite coating on them makes sure a person can read them in all light, from bright day to full dark.
A brown silicon rubber strap comes with the watch, it has a lion's paw design on the back that adds a subtle design touch. The strap bends easily, so it feels good to wear. The case back has a slight curve. These details make the watch comfortable to wear in many places, and the watch also holds out against water down to 200 meters.
The Tentagraph Caliber 9SC5 is the main technical feature. It has a chronograph part that works at 5Hz. This fast-moving part runs for 72 hours on one charge and also protects against magnetic fields up to 4,800 A/m—these are important features for a modern sports watch.
The chronograph functions add to the Tokyo Lion's sports appeal while keeping the collection's specific look. Grand Seiko's mechanical skill joins with its angular design idea, forming watches that go against how people usually think about sports watches.
People can get the watch in August 2025. It will be on Grand Seiko's website and at stores that sell its watches, this makes it easy for people around the world to buy good Japanese mechanical watches. The $16,400 price shows the better materials, the in-house movement, and the special design that set Grand Seiko's sports watches apart.
This Tentagraph shows Grand Seiko's continued step forward in expensive sports watches. It shows how old Japanese craftsmanship can take on modern design styles while keeping its technical lead and wearing comfort for demanding uses.

Read more