The Legend Reborn: SEIKO Prospex Diver Scuba 1970 Reissue SBDX031 - RYBrandshop

The Legend Reborn: Seiko Prospex Diver Scuba 1970 SBDX031

The SEIKO Prospex SBDX031 is a prestigious tribute to the iconic "Captain Willard" 1970 diver’s watch. This Japanese-made masterpiece combines historical soul with modern high-end horology. Featuring a robust 45mm stainless steel case and the signature asymmetrical crown guard, it remains one of the most sought-after pieces for serious diving enthusiasts and collectors alike.

Seiko Prospex SBDX031 Captain Willard Reissue Front View

Professional Specifications and Performance

Engineered for the depths, the SBDX031 is powered by a high-grade automatic movement. With a thickness of 13mm and a solid weight of 132g, it offers a substantial presence without sacrificing comfort. The watch features a scratch-resistant sapphire glass and is paired with a durable rubber bracelet that accommodates wrist sizes up to 20cm. Our professional technical assessment recorded a reliable accuracy of +23 seconds per day for this unit.

Seiko SBDX031 Asymmetrical Case Detail View

Check our professional technical inspection and accuracy results below.

\ Browse All Current In-Store Stock /

Shop Luxury Watches Collection

*Final stock in hand. No restocks planned once sold out.

Condition Assessment: Grade B Excellence

At RYBrandshop, we provide a transparent look at every pre-owned luxury timepiece. This SBDX031 is rated as Grade B (Excellent Condition), reflecting its authentic character as a professional tool watch.

  • Dial & Hands: Both the black dial and the luminescent hands are in beautiful (綺麗) condition.
  • Crystal: The sapphire glass is perfectly clear and beautiful.
  • Case & Bezel: These components exhibit minor scratches (小傷) consistent with careful, authentic use.
  • Bracelet & Clasp: The waffle-style rubber strap and buckle show minor surface marks but remain in excellent functional shape.


Seiko SBDX031 Side Case Profile and Crown Detail View
Seiko SBDX031 Steel Buckle Detail Macro View

A Complete Set for the Collector

This SEIKO SBDX031 is offered with its essential original accessories, ensuring its long-term value and provenance. The package includes the genuine inner box, warranty card, instruction manual, tag, and repair documentation. Owning this limited-edition reissue allows you to experience a milestone in SEIKO's diving history with the peace of mind that comes from a full-set offering.

Seiko SBDX031 Full Set Packaging and Documentation Set

Shop with Confidence at RYBrandshop

Every watch in our collection undergoes a rigorous authentication and technical inspection process. We guarantee 100% authenticity and provide a dedicated 3-month mechanical warranty. Add this legendary 1970 Mechanical Diver to your collection and enjoy secure worldwide shipping via DHL Express today.

Check our professional technical inspection and accuracy results below.

\ Find Your Next Professional Diver Today /

Browse Our Current Inventory

*Authentic Japanese Curated Selection. Global Shipping via DHL.

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.