Seiko SPB509 Seiko Prospex New 60th Anniversary Limited Edition 1968 Heritage Diver’s GMT “The Great Wave” – 42 mm Stainless Steel, Automatic Cal. 6R54, 300 m WR (Limited to 6,000)

Celebrating Six Decades of Innovation

The Seiko Prospex SPB509J1 marks a significant milestone in Seiko's legacy, commemorating 60 years since the introduction of Japan's first-ever diver's watch in 1965. This limited edition model pays homage to the original 1968 high-frequency diver, blending classic design elements with modern advancements. Limited to just 6,000 pieces worldwide, it stands as a testament to Seiko's enduring commitment to precision and innovation

Precision Movement

At the heart of the SPB509J1 lies the in-house Caliber 6R54 automatic movement, featuring manual winding capabilities. This movement offers a robust power reserve of approximately 72 hours, ensuring reliability over extended periods. With an accuracy range of +25 to -15 seconds per day, it delivers dependable timekeeping for both diving professionals and enthusiasts.

Robust Case Design

The watch boasts a stainless steel case with a ceramic bezel insert, combining durability with a polished aesthetic. Measuring 42.0mm in diameter and 13.3mm in thickness, the case provides a substantial yet comfortable presence on the wrist. The lug-to-lug distance of 48.6mm ensures a snug fit, while the 20mm lug width offers versatility in strap options. A screw-down crown enhances water resistance, making it suitable for professional diving activities.

Enhanced Legibility and Durability

Equipped with a sapphire crystal featuring an anti-reflective coating on the inner surface, the SPB509J1 ensures clear visibility under various lighting conditions. The dial showcases Seiko's LumiBrite technology applied to the hands, indices, and bezel, providing exceptional luminosity in low-light environments. This feature is crucial for divers operating in challenging underwater conditions.

Water Resistance and Diving Features

Designed to withstand the rigors of professional diving, the SPB509J1 offers an impressive water resistance of up to 300 meters (1,000 feet). The unidirectional rotating bezel allows divers to track elapsed time accurately, a critical function for underwater safety. Additionally, the watch's magnetic resistance of 4,800 A/m ensures reliable performance in varying magnetic fields, further enhancing its suitability for diving professionals.

Commemorative Details

The case back of the SPB509J1 is engraved with "LIMITED EDITION" and the individual serial number, underscoring its exclusivity. This unique marking not only signifies the watch's limited production but also adds a personalized touch for collectors. The watch's design elements, including the wave-patterned dial, pay tribute to Seiko's rich history in diving watch innovation.

The Seiko Prospex SPB509J1 1968 Heritage Diver’s GMT 60th Anniversary Limited Edition seamlessly integrates historical design with contemporary functionality. Its robust construction, precise movement, and commemorative features make it a standout piece for both diving professionals and watch enthusiasts. Whether exploring the depths of the ocean or appreciating its craftsmanship on land, this timepiece stands as a proud symbol of Seiko's dedication to excellence in horology.

• Limited Edition: 6,000 pieces worldwide
• Power Reserve: Approximately 72 hours
• Jewels: 24
• Caliber: 6R54
• Crystal: Sapphire with anti-reflective coating on the inner surface
• Clasp: Three-fold clasp with secure lock and push-button release, solid & slide adjuster