Seiko SPB511 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)

A Heritage Tribute Elevated

The SPB511J1 revisits Seiko’s first diver’s watch from 1965, reimagined for today’s wristwear. Its stainless-steel case, slightly refined in size with a 40 mm diameter and 13 mm thickness, conveys the same vintage charm while offering contemporary wearability. Limited to just 6,000 pieces, this model is a meaningful nod to Seiko’s diving legacy

Robust, Modern Movement

Powered by Seiko’s in-house Caliber 6R55, this automatic movement delivers a 72-hour power reserve, operates within a daily accuracy of +25/–15 seconds, and includes hacking functionality. With 24 jewels and a manual-winding option, it combines reliability and mechanical refinement

Diver-Grade Build Quality

Crafted for professional use, the watch boasts 300 m (30 bar) water resistance, a unidirectional bezel, and a screw-down crown. It also offers magnetic protection up to 4,800 A/m. The solid screw-down case back clearly indicates “LIMITED EDITION” along with the individual serial number

Crystal & Dial Excellence

A curved sapphire crystal with an anti-reflective inner coating ensures optimal visibility, while the silver-ish dial features an embossed wave pattern—a tribute to Seiko’s diver symbol. Hands, indices, and the bezel pip are treated with LumiBrite for excellent luminescence

Comfort & Finish

The three-link stainless-steel bracelet is finished with super-hard coating and secured by a modern three-fold clasp with secure lock, push-button release, and a slide-adjuster for up to 15 mm micro-adjustments—ideal for accommodating wet suits or changing wrist sizes

Presence and Wearability

Despite its diving capabilities, the SPB511J1 maintains a balanced wrist presence with a 46.4 mm lug-to-lug measurement and a weight of ~174 g. It strikes a harmony between vintage proportions and modern specs, making it suitable for both deep dives and everyday sophistication

In Summary:

The Seiko Prospex SPB511J1 is a masterful blend of heritage and innovation— paying homage to Seiko’s 1965 diving pioneer while gearing up for the present. Its limited-edition status, technical features, and thoughtful design updates make it a standout choice for collectors and divers alike.

• 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