Seiko / Seiko Prospex 1965 Diver’s Modern Re-interpretation-Ref. SPB545
A Seiko Prospex SPB545J1 automatic diver's watch, featuring a 42mm stainless steel case, a dark green dial with luminous geometric markers, a matching green elapsed-time bezel, and a steel link bracelet.
Silver Seiko watch with detailed case back on a white background
Close-up of a metallic watch band with 'Seiko' branding on a black background
A Seiko Prospex SPB545J1 automatic diver's watch, featuring a 42mm stainless steel case, a dark green dial with luminous geometric markers, a matching green elapsed-time bezel, and a steel link bracelet.
Silver Seiko watch with detailed case back on a white background
Close-up of a metallic watch band with 'Seiko' branding on a black background
Authorized Seiko Retailer

Seiko Prospex 1965 Diver’s Modern Re-interpretation-Ref. SPB545

$1,400.00
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Inspired by the Waters of Okinawa

The Seiko Prospex SPB545 Save the Ocean Limited Edition brings the heritage of Seiko’s 1965 diver together with colors inspired by the breathtaking waters surrounding Okinawa, Japan.

Its sunray-patterned blue dial evokes sunlight shimmering through Okinawa’s crystal-clear water onto the white sandy seabed below. A subdued gray bezel provides a sophisticated contrast, giving this professional diver a look that feels equally at home beneath the water or worn every day.

Limited to just 4,000 pieces worldwide, the SPB545 is powered by Seiko’s Caliber 6R55 automatic movement, delivering approximately 72 hours of power reserve.

 

Key Features

  • Save the Ocean Limited Edition
  • Limited to 4,000 pieces worldwide
  • Okinawa ocean-inspired sunray blue dial
  • Refined gray unidirectional rotating bezel
  • 40mm stainless steel case
  • Seiko Caliber 6R55 automatic movement
  • Approximately 72-hour / 3-day power reserve
  • Curved sapphire crystal with anti-reflective coating
  • New six-step adjustable clasp
  • 300-meter professional diver’s water resistance
  • Individually numbered caseback

Okinawa: The Inspiration Behind the Dial

Okinawa is renowned for exceptionally clear ocean water and white sandy seabeds. Seiko translates that landscape into the SPB545 through a radiating sunray blue dial designed to capture changing light much like the surface of the ocean itself.

Paired with the understated gray bezel, the result feels unmistakably aquatic without becoming overly thematic—a subtle connection to the environment that inspired this Save the Ocean edition.

Three Days of Automatic Performance

Inside the SPB545 is Seiko’s Caliber 6R55, an automatic mechanical movement with manual winding capability and approximately 72 hours of power reserve.

The watch is built as a true diver with a screw-down crown, unidirectional bezel, LumiBrite on the hands, indexes and bezel, and an impressive 300 meters of water resistance.

The Skeie’s Perspective

At Skeie’s Jewelers, we think the SPB545 gets the balance between a serious dive watch and an everyday luxury sports watch exactly right.

The 40mm case and 46.4mm lug-to-lug measurement give it exceptionally wearable proportions, while the blue sunray dial brings much more personality than a traditional black diver. We especially like the gray bezel—it softens the overall appearance and lets the blue dial become the focus.

The new adjustable clasp is another feature we think owners will genuinely appreciate. With six adjustment positions spanning approximately 15mm, you can fine-tune the bracelet as your wrist changes throughout the day or adjust it for diving without reaching for a tool.

We offer complimentary shipping on all orders, with each piece carefully packaged and fully insured for delivery. For full details on shipping methods and timelines, please visit our Shipping Policy.

Articles may be returned for a refund or exchange within 30 days of purchase, provided they are in salable condition and accompanied by a valid sales receipt. Please note that some exclusions may apply. For complete return guidelines, visit our Returns Policy.

Inspired by the Waters of Okinawa

The Seiko Prospex SPB545 Save the Ocean Limited Edition brings the heritage of Seiko’s 1965 diver together with colors inspired by the breathtaking waters surrounding Okinawa, Japan.

Its sunray-patterned blue dial evokes sunlight shimmering through Okinawa’s crystal-clear water onto the white sandy seabed below. A subdued gray bezel provides a sophisticated contrast, giving this professional diver a look that feels equally at home beneath the water or worn every day.

Limited to just 4,000 pieces worldwide, the SPB545 is powered by Seiko’s Caliber 6R55 automatic movement, delivering approximately 72 hours of power reserve.

 

Key Features

  • Save the Ocean Limited Edition
  • Limited to 4,000 pieces worldwide
  • Okinawa ocean-inspired sunray blue dial
  • Refined gray unidirectional rotating bezel
  • 40mm stainless steel case
  • Seiko Caliber 6R55 automatic movement
  • Approximately 72-hour / 3-day power reserve
  • Curved sapphire crystal with anti-reflective coating
  • New six-step adjustable clasp
  • 300-meter professional diver’s water resistance
  • Individually numbered caseback

Okinawa: The Inspiration Behind the Dial

Okinawa is renowned for exceptionally clear ocean water and white sandy seabeds. Seiko translates that landscape into the SPB545 through a radiating sunray blue dial designed to capture changing light much like the surface of the ocean itself.

Paired with the understated gray bezel, the result feels unmistakably aquatic without becoming overly thematic—a subtle connection to the environment that inspired this Save the Ocean edition.

Three Days of Automatic Performance

Inside the SPB545 is Seiko’s Caliber 6R55, an automatic mechanical movement with manual winding capability and approximately 72 hours of power reserve.

The watch is built as a true diver with a screw-down crown, unidirectional bezel, LumiBrite on the hands, indexes and bezel, and an impressive 300 meters of water resistance.

The Skeie’s Perspective

At Skeie’s Jewelers, we think the SPB545 gets the balance between a serious dive watch and an everyday luxury sports watch exactly right.

The 40mm case and 46.4mm lug-to-lug measurement give it exceptionally wearable proportions, while the blue sunray dial brings much more personality than a traditional black diver. We especially like the gray bezel—it softens the overall appearance and lets the blue dial become the focus.

The new adjustable clasp is another feature we think owners will genuinely appreciate. With six adjustment positions spanning approximately 15mm, you can fine-tune the bracelet as your wrist changes throughout the day or adjust it for diving without reaching for a tool.

We offer complimentary shipping on all orders, with each piece carefully packaged and fully insured for delivery. For full details on shipping methods and timelines, please visit our Shipping Policy.

Articles may be returned for a refund or exchange within 30 days of purchase, provided they are in salable condition and accompanied by a valid sales receipt. Please note that some exclusions may apply. For complete return guidelines, visit our Returns Policy.

From the

Prospex

Collection

A Seiko Prospex SPB545J1 automatic diver's watch, featuring a 42mm stainless steel case, a dark green dial with luminous geometric markers, a matching green elapsed-time bezel, and a steel link bracelet.

Inspired by the Waters of Okinawa

The Seiko Prospex SPB545 Save the Ocean Limited Edition brings the heritage of Seiko’s 1965 diver together with colors inspired by the breathtaking waters surrounding Okinawa, Japan.

Its sunray-patterned blue dial evokes sunlight shimmering through Okinawa’s crystal-clear water onto the white sandy seabed below. A subdued gray bezel provides a sophisticated contrast, giving this professional diver a look that feels equally at home beneath the water or worn every day.

Limited to just 4,000 pieces worldwide, the SPB545 is powered by Seiko’s Caliber 6R55 automatic movement, delivering approximately 72 hours of power reserve.

 

Key Features

  • Save the Ocean Limited Edition
  • Limited to 4,000 pieces worldwide
  • Okinawa ocean-inspired sunray blue dial
  • Refined gray unidirectional rotating bezel
  • 40mm stainless steel case
  • Seiko Caliber 6R55 automatic movement
  • Approximately 72-hour / 3-day power reserve
  • Curved sapphire crystal with anti-reflective coating
  • New six-step adjustable clasp
  • 300-meter professional diver’s water resistance
  • Individually numbered caseback

Okinawa: The Inspiration Behind the Dial

Okinawa is renowned for exceptionally clear ocean water and white sandy seabeds. Seiko translates that landscape into the SPB545 through a radiating sunray blue dial designed to capture changing light much like the surface of the ocean itself.

Paired with the understated gray bezel, the result feels unmistakably aquatic without becoming overly thematic—a subtle connection to the environment that inspired this Save the Ocean edition.

Three Days of Automatic Performance

Inside the SPB545 is Seiko’s Caliber 6R55, an automatic mechanical movement with manual winding capability and approximately 72 hours of power reserve.

The watch is built as a true diver with a screw-down crown, unidirectional bezel, LumiBrite on the hands, indexes and bezel, and an impressive 300 meters of water resistance.

The Skeie’s Perspective

At Skeie’s Jewelers, we think the SPB545 gets the balance between a serious dive watch and an everyday luxury sports watch exactly right.

The 40mm case and 46.4mm lug-to-lug measurement give it exceptionally wearable proportions, while the blue sunray dial brings much more personality than a traditional black diver. We especially like the gray bezel—it softens the overall appearance and lets the blue dial become the focus.

The new adjustable clasp is another feature we think owners will genuinely appreciate. With six adjustment positions spanning approximately 15mm, you can fine-tune the bracelet as your wrist changes throughout the day or adjust it for diving without reaching for a tool.

Crystal: Curved Sapphire
Crystal Coating: Anti-Reflective Coating on Inner Surface
Lume: LumiBrite on Hands, Indexes & Bezel
Crown: Screw-Down
Clasp: Three-Fold Secure-Lock Clasp with Six-Step Slide Adjuster

Caliber Number: 6R55
Movement Type: Automatic with manual winding Precision: +25 to -15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 Functions

  • Stop second hand function

Case: Stainless Steel
Diameter: 40mm
Thickness: 13mm
Lug-to-Lug: 46.4mm
Lug Width: 20mm


Water Resistance: 300 Meters / 1,000 Feet Diver’s
Caseback: Limited Edition with Individual Serial Number

A Seiko Prospex SPB545J1 automatic diver's watch, featuring a 42mm stainless steel case, a dark green dial with luminous geometric markers, a matching green elapsed-time bezel, and a steel link bracelet.

Inspired by the Waters of Okinawa

The Seiko Prospex SPB545 Save the Ocean Limited Edition brings the heritage of Seiko’s 1965 diver together with colors inspired by the breathtaking waters surrounding Okinawa, Japan.

Its sunray-patterned blue dial evokes sunlight shimmering through Okinawa’s crystal-clear water onto the white sandy seabed below. A subdued gray bezel provides a sophisticated contrast, giving this professional diver a look that feels equally at home beneath the water or worn every day.

Limited to just 4,000 pieces worldwide, the SPB545 is powered by Seiko’s Caliber 6R55 automatic movement, delivering approximately 72 hours of power reserve.

 

Key Features

  • Save the Ocean Limited Edition
  • Limited to 4,000 pieces worldwide
  • Okinawa ocean-inspired sunray blue dial
  • Refined gray unidirectional rotating bezel
  • 40mm stainless steel case
  • Seiko Caliber 6R55 automatic movement
  • Approximately 72-hour / 3-day power reserve
  • Curved sapphire crystal with anti-reflective coating
  • New six-step adjustable clasp
  • 300-meter professional diver’s water resistance
  • Individually numbered caseback

Okinawa: The Inspiration Behind the Dial

Okinawa is renowned for exceptionally clear ocean water and white sandy seabeds. Seiko translates that landscape into the SPB545 through a radiating sunray blue dial designed to capture changing light much like the surface of the ocean itself.

Paired with the understated gray bezel, the result feels unmistakably aquatic without becoming overly thematic—a subtle connection to the environment that inspired this Save the Ocean edition.

Three Days of Automatic Performance

Inside the SPB545 is Seiko’s Caliber 6R55, an automatic mechanical movement with manual winding capability and approximately 72 hours of power reserve.

The watch is built as a true diver with a screw-down crown, unidirectional bezel, LumiBrite on the hands, indexes and bezel, and an impressive 300 meters of water resistance.

The Skeie’s Perspective

At Skeie’s Jewelers, we think the SPB545 gets the balance between a serious dive watch and an everyday luxury sports watch exactly right.

The 40mm case and 46.4mm lug-to-lug measurement give it exceptionally wearable proportions, while the blue sunray dial brings much more personality than a traditional black diver. We especially like the gray bezel—it softens the overall appearance and lets the blue dial become the focus.

The new adjustable clasp is another feature we think owners will genuinely appreciate. With six adjustment positions spanning approximately 15mm, you can fine-tune the bracelet as your wrist changes throughout the day or adjust it for diving without reaching for a tool.

Crystal: Curved Sapphire
Crystal Coating: Anti-Reflective Coating on Inner Surface
Lume: LumiBrite on Hands, Indexes & Bezel
Crown: Screw-Down
Clasp: Three-Fold Secure-Lock Clasp with Six-Step Slide Adjuster

Caliber Number: 6R55
Movement Type: Automatic with manual winding Precision: +25 to -15 seconds per day Power reserve: Approx. 72 hours(3 days) Jewels: 24 Functions

  • Stop second hand function

Case: Stainless Steel
Diameter: 40mm
Thickness: 13mm
Lug-to-Lug: 46.4mm
Lug Width: 20mm


Water Resistance: 300 Meters / 1,000 Feet Diver’s
Caseback: Limited Edition with Individual Serial Number

Why Choose Skeie's

Authorized Dealer
Official Seiko authorized dealer with full manufacturer warranty and authenticity guarantee
Expert Service
Decades of horological expertise with certified watchmakers and personalized customer care
Fast & Secure Shipping
Insured delivery with tracking, carefully packaged to arrive in perfect condition

Every new Seiko purchased at Skeie's is backed by their 3-year warranty

3
YEAR
WARRANTY
Click here to view Seiko's warranty policy

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THE SKEIES EXPERIENCE

Frequently Asked Questions

We have a team of expert goldsmiths and jewelers on site, and can work on a large range of repair needs. 

Common repairs include ring sizing, polishing, rhodium plating, adjusting chain length, replacing clasps, re-stringing services, and more.

There is no appointment necessary to drop off your items for review and estimates.

We cannot give price estimates over the phone or online, as every piece can vary.

For more information view our Jewelry Services

Yes, we have GIA Graduate Gemologists with over 50 years of invaluable experience. Whether you're curious about the worth of a family heirloom or seeking an appraisal for insurance purposes, our seasoned professionals offer meticulous evaluations to ensure you understand the true worth of your treasures.

Additionally, we have an AGS Accredited Gem Lab® (AGL) with a collection of advanced equipment allowing our gemologists to thoroughly inspect jewelry, determine and grade its qualities, calculate measurements, and arrive at an estimation of value.

Since we're located in Eugene, Oregon, we do not charge sales tax.

We offer free shipping on all orders. Our standard shipping is 3-7 days; all items are fully insured, arrive in discrete packaging, and require a signature upon delivery.

For more information view our Shipping Policy

Items may be returned for a refund or exchange within 30 days of purchase, provided they are in salable condition and accompanied by a valid sales receipt. Certain exclusions may apply.

For full details, please review our Refund Policy