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Seiko Prospex SPB381 Miami | 1968 Heritage Diver GMT Watch | Marine Green Dial | Authorized Seiko Dealer | Lexor Miami

Discover the Seiko Prospex SPB381 at Lexor Miami, your trusted Authorized Seiko Dealer in Miami. The SPB381 combines Seiko's legendary professional diving heritage with advanced GMT functionality, creating a versatile mechanical watch designed for collectors, travelers, and adventure enthusiasts.

The Seiko SPB381 belongs to the prestigious 1968 Heritage Diver's GMT collection, inspired by one of Seiko's most important professional dive watches. This modern interpretation combines historical design elements with advanced Japanese mechanical watchmaking technology.

Powered by the Seiko Caliber 6R54 Automatic GMT Movement, the SPB381 provides approximately 72 hours of power reserve and features a 24-hour GMT hand, allowing the wearer to track a second time zone. :contentReference[oaicite:1]{index=1}

The SPB381 stands out with its unique marine green dial and matching ceramic bezel insert, stainless steel construction, sapphire crystal with anti-reflective coating, and professional Prospex specifications including 200 meters of water resistance. :contentReference[oaicite:2]{index=2}

With over 20 years of experience and more than 3,405 verified five-star Google reviews, Lexor Miami is a trusted destination for authentic Seiko watches and luxury timepieces.

Located minutes from Miami International Airport, Downtown Miami, Brickell, Wynwood, Doral, Coral Gables, and Miami Beach, Lexor Miami proudly serves Seiko collectors throughout South Florida and across the United States.

Seiko Prospex SPB381 1968 Heritage Diver GMT marine green dial watch at Lexor Miami

The Seiko Prospex SPB381 combines Japanese mechanical craftsmanship, GMT functionality, and professional dive watch heritage.


Seiko Prospex SPB381 Product Highlights

The SPB381 represents the perfect balance between Seiko's diving heritage and modern travel functionality. Designed for collectors who want a mechanical GMT watch with professional specifications, this model delivers versatility, durability, and distinctive Japanese design.

The marine green color combination gives the SPB381 a unique personality within the Prospex GMT family, making it an excellent choice for collectors searching for a watch that stands apart from traditional black or blue GMT models.

1968 Heritage Diver Design

Inspired by Seiko's legendary professional diver watches from 1968.

Automatic GMT Movement

Powered by Seiko Caliber 6R54 with dual time display functionality.

72 Hour Power Reserve

Three days of power reserve when fully wound.

Marine Green Ceramic Bezel

Premium ceramic bezel insert with distinctive explorer styling.

Sapphire Crystal

Scratch-resistant sapphire crystal with anti-reflective coating.

200 Meter Water Resistance

Professional Prospex diver specifications.


Why We Love the Seiko SPB381

The Seiko SPB381 stands out because it combines a professional dive watch foundation with the practicality of a GMT complication. It is a watch designed for collectors who appreciate exploration, travel, and mechanical craftsmanship.

The marine green dial, gold GMT hand accents, ceramic bezel, and 1968 Heritage Diver inspiration create a sophisticated appearance that works equally well for outdoor adventures and everyday luxury wear.

For collectors looking for a Japanese GMT diver watch with heritage and personality, the SPB381 is one of the most distinctive models in the Seiko Prospex collection.


Who Should Buy the Seiko SPB381?

  • Collectors searching for a unique Seiko GMT watch.
  • Fans of Seiko Heritage Diver models.
  • Travelers who need a mechanical second time zone function.
  • Watch enthusiasts looking for a green luxury sports watch.
  • Collectors expanding their Seiko Prospex collection.
  • Anyone searching for an authentic Seiko SPB381 in Miami.

Seiko SPB381 Gallery

Front view of Seiko SPB381 marine green dial GMT diver watch Close-up of Seiko SPB381 green ceramic bezel and GMT hand details Side view of Seiko SPB381 stainless steel case and screw down crown Seiko SPB381 bracelet clasp and sapphire crystal detail

The Heritage Behind the Seiko Prospex SPB381

The Seiko Prospex SPB381 continues the legacy of one of Seiko's most important professional dive watches: the legendary 1968 Diver.

Introduced in 1968, Seiko's professional diver watch represented a major step forward in Japanese watchmaking. It was created for serious underwater exploration and became recognized for its durability, reliability, and innovative design.

The modern 1968 Heritage Diver collection recreates the spirit of this historic model while incorporating advanced materials, improved movements, and modern manufacturing techniques.

The SPB381 adds a modern travel complication to this heritage by incorporating Seiko's mechanical GMT movement, creating a watch that connects underwater exploration with global travel.

Seiko Prospex SPB381 inspired by the historic 1968 Heritage Diver collection

Powered by the Seiko Caliber 6R54 Automatic GMT Movement

The Seiko Prospex SPB381 is powered by the Caliber 6R54 automatic GMT movement, one of Seiko's most advanced mechanical movements developed for the Prospex collection.

The movement provides approximately 72 hours of power reserve, allowing the watch to continue operating for three days when fully wound.

The GMT function allows the wearer to track a second time zone using the dedicated 24-hour hand, making the SPB381 an excellent choice for frequent travelers and international collectors.

The Caliber 6R54 combines traditional mechanical watchmaking with practical functionality, offering automatic winding, manual winding capability, and reliable Japanese engineering.

Seiko Caliber 6R54 automatic GMT movement inside the Prospex SPB381

Seiko SPB381 GMT Function for International Travel

The GMT function is one of the most useful complications for modern watch collectors. It allows the wearer to monitor another time zone without affecting the primary time display.

The SPB381 features a dedicated GMT hand and 24-hour scale, making it easy to track home time while traveling across different regions of the world.

Combined with its professional diver construction, the SPB381 becomes a versatile companion for explorers, professionals, and collectors who value functionality.


Marine Green Design and Premium Finishing

The Seiko SPB381 features a distinctive marine green dial and matching ceramic bezel insert, creating a unique appearance inspired by the colors of the ocean and exploration.

The contrasting GMT hand adds excellent legibility while the LumiBrite-coated hands and markers provide visibility in low-light conditions.

The combination of polished and brushed stainless steel surfaces creates a refined appearance while maintaining the rugged character expected from a Seiko Prospex diver.


Seiko Prospex SPB381 Features

  • Official Seiko Prospex 1968 Heritage Diver GMT Collection
  • Inspired by Seiko's Professional Diver Watches From 1968
  • Seiko Caliber 6R54 Automatic GMT Movement
  • Approximately 72 Hours of Power Reserve
  • GMT Second Time Zone Function
  • Automatic and Manual Winding Capability
  • 24 Jewels
  • Stop Seconds Function
  • Stainless Steel Case With Super-Hard Coating
  • Sapphire Crystal With Anti-Reflective Coating
  • Marine Green Ceramic Bezel Insert
  • Unidirectional Rotating Bezel
  • 200 Meter Water Resistance
  • Screw-Down Crown
  • Screw Case Back
  • LumiBrite Hands and Markers
  • Date Display
  • Stainless Steel Bracelet
  • Professional Prospex GMT Diver Design

Seiko Prospex SPB381 Technical Specifications

Reference SPB381
Collection Seiko Prospex 1968 Heritage Diver GMT
Movement Seiko Caliber 6R54 Automatic GMT
Movement Type Automatic Mechanical GMT
Jewels 24 Jewels
Power Reserve Approximately 72 Hours
Functions Hours, Minutes, Seconds, Date, GMT Second Time Zone
Case Material Stainless Steel With Super-Hard Coating
Case Diameter 42mm
Crystal Sapphire Crystal With Anti-Reflective Coating
Dial Color Marine Green
Bezel Marine Green Ceramic Unidirectional Rotating Bezel
Water Resistance 200 Meters / 660 Feet
Crown Screw-Down Crown
Strap Stainless Steel Bracelet
Luminescence LumiBrite Hands and Markers

Specifications based on official Seiko product information.


Why Buy the Seiko SPB381 from Lexor Miami?

Purchasing the Seiko SPB381 from an authorized retailer ensures you receive a genuine Seiko watch, official manufacturer warranty coverage, and expert customer support.

Lexor Miami has more than 20 years of experience specializing in luxury watches, designer eyewear, and premium fragrances.

  • ✔ Authorized Seiko Dealer
  • ✔ 100% Authentic Seiko Watches
  • ✔ Official Seiko Warranty
  • ✔ Over 20 Years of Luxury Watch Experience
  • ✔ 3,405+ Verified Five-Star Reviews
  • ✔ Secure Nationwide Shipping
  • ✔ Miami Luxury Watch Showroom

Visit Lexor Miami

Experience the Seiko Prospex SPB381 GMT Diver in person at Lexor Miami. Explore our authentic Seiko collection and discover the craftsmanship behind Seiko's most advanced professional watches.

Our Miami showroom is conveniently located near Miami International Airport and serves collectors throughout South Florida and across the United States.

Lexor Miami showroom featuring authentic Seiko Prospex GMT watches

What Makes the Seiko Prospex SPB381 Unique?

The Seiko Prospex SPB381 is unique because it combines the heritage of a professional dive watch with the practicality of a mechanical GMT complication and a distinctive marine green design.

While many GMT watches focus primarily on aviation or travel, the SPB381 brings GMT functionality into the world of professional diving. This creates a versatile tool watch capable of supporting international travel, underwater exploration, and everyday wear.

The marine green dial and bezel combination gives the SPB381 a unique personality within the Seiko Prospex GMT collection. The color inspiration connects the watch to the ocean environment while providing a sophisticated appearance for modern collectors.

For enthusiasts searching for a Japanese GMT diver watch with heritage, reliability, and a distinctive design, the Seiko SPB381 is one of the most memorable models in the Prospex collection.


Seiko SPB381 vs Other Seiko Prospex GMT Watches

The Seiko Prospex GMT collection offers different dial colors and design personalities. Understanding the differences helps collectors select the perfect model.

Model Collection Main Difference
Seiko SPB381 1968 Heritage Diver GMT Marine green dial and bezel with professional diver GMT specifications
Seiko SPB383 1968 Heritage Diver GMT Black dial GMT diver with ceramic bezel and classic tool watch appearance
Seiko SPB519 1968 Heritage Diver GMT Silver-white dial with blue ceramic bezel and travel-focused design
Seiko SPB385 1968 Heritage Diver GMT Green dial collector edition variation with unique styling
Seiko 5 Sports GMT Seiko GMT Collection More accessible GMT watches with different specifications

Why Collectors Love the Seiko SPB381

  • Distinctive design: Marine green dial and bezel create a unique collector appearance.
  • GMT functionality: Track another time zone while traveling internationally.
  • Professional heritage: Inspired by Seiko's legendary 1968 dive watch.
  • Mechanical craftsmanship: Powered by Seiko's Caliber 6R54 automatic GMT movement.
  • Premium materials: Sapphire crystal and ceramic bezel provide durability and refinement.
  • Japanese innovation: A modern expression of Seiko's professional watchmaking history.

Who Should Buy the Seiko SPB381?

The Seiko Prospex SPB381 is ideal for collectors who want a versatile mechanical watch that combines professional specifications, travel functionality, and unique styling.

  • Collectors searching for a green Seiko GMT watch.
  • Travelers who need a reliable second time zone function.
  • Fans of Seiko Prospex Heritage Diver models.
  • Collectors looking for an alternative to traditional Swiss GMT watches.
  • Watch enthusiasts who appreciate Japanese mechanical craftsmanship.
  • Anyone searching for an authentic Seiko SPB381 in Miami.

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Frequently Asked Questions About the Seiko SPB381

What is the Seiko SPB381?

The Seiko SPB381 is a Prospex 1968 Heritage Diver GMT watch featuring a marine green dial, ceramic bezel, and automatic GMT movement.

Is the Seiko SPB381 a GMT watch?

Yes. The SPB381 uses the Seiko Caliber 6R54 automatic GMT movement, allowing the wearer to track a second time zone.

What movement does the Seiko SPB381 use?

The SPB381 uses the Seiko Caliber 6R54 automatic GMT movement with approximately 72 hours of power reserve.

Is the Seiko SPB381 a dive watch?

Yes. The SPB381 is part of the Prospex professional diver collection and features 200 meters of water resistance, sapphire crystal, screw-down crown, and a unidirectional rotating bezel.

What makes the SPB381 different from the SPB383?

The main difference is the design. The SPB381 features a marine green dial and bezel, while the SPB383 features a black dial and bezel, giving each model a different personality.

Is the Seiko SPB381 good for travel?

Yes. The GMT function allows travelers to monitor another time zone while enjoying the durability of a professional Seiko Prospex diver.

Where can I buy the Seiko SPB381 in Miami?

You can purchase the authentic Seiko Prospex SPB381 at Lexor Miami, an Authorized Seiko Dealer offering genuine Seiko watches, official warranty coverage, and expert service.

Does Lexor Miami sell authentic Seiko watches?

Yes. Lexor Miami is an Authorized Seiko Dealer specializing in authentic Seiko watches and luxury timepieces.


Discover the Seiko Prospex SPB381 GMT Diver at Lexor Miami

The Seiko Prospex SPB381 combines professional diving heritage, GMT travel functionality, and Japanese mechanical craftsmanship in a distinctive luxury sports watch.

With its marine green dial, ceramic bezel, Caliber 6R54 GMT movement, sapphire crystal, and 1968 Heritage Diver inspiration, the SPB381 is an exceptional choice for collectors searching for a unique Seiko Prospex watch.

Lexor Miami
2371 NW 20th Street
Miami, Florida 33142
Authorized Seiko Dealer

Lexor Miami authorized Seiko dealer showroom featuring Seiko Prospex GMT watches
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Local Guide • 53 opinions • 78 photos

Great customer service, the best prices on perfumes, watches and glasses A+ will definitely be back.
The owners are great

John Za

Dec 13, 2025

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Amazing store. This store belongs in a luxury mall next to the giants.
Excellent customer service. Dont hesitate to reach out and visit this store. Vincent and Derya very super helpful and showed me around and offered to try and see different watches from so many brands. I had tu run away before buying another watch.
I will be back here another time for sure on my next purchase.
Thank you.

Yegor Nefodov

Dec 10, 2025

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I recently visited LEXOR MIAMI to buy a RADO watch, and I must say, the experience was exceptional. The sales executive who assisted us was truly amazing. She made us feel completely comfortable throughout the entire process, patiently answered all our questions, and helped us find the perfect watch without any pressure. Her professionalism, knowledge, and warm attitude made a big difference. It felt more like being helped by a friend than a salesperson Derya

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Jul 9, 2025

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The best store in Miami city for perfumes, sunglasses, quality products, and the best prices with top-notch customer service.Eu tive o melhor atendimento com Jennifer e o seu Ahmet.

Melhor loja na cidade de miami perfume , óculos , qualidade e melhores preços atendimento de primeira qualidade

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Jun 17, 2025

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free returns

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dealers

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authentic pieces

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warranty

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women-owned

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