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Celebrating 145 Years of Seiko Innovation
The Seiko Prospex HBC005J1 is a special limited-edition diver's watch created to commemorate the 145th anniversary of Seiko. Inspired by the iconic 1965 diver's watch that marked Japan's first purpose-built dive watch, this exceptional timepiece blends vintage design cues with modern engineering and professional-grade performance. Limited to just 4,000 pieces worldwide, the HBC005J1 is a highly collectible addition to the Prospex collection.
Its sophisticated silver-white dial is complemented by striking blue accents inspired by the iconic "Seiko Blue" colour that has represented the brand since the 1960s. The combination of the silver-white dial, blue seconds hand and blue bezel insert creates a fresh, elegant aesthetic while maintaining the robust character expected of a professional diver's watch.
Inspired by a Diving Legend
The case design draws directly from Seiko's celebrated 1965 diver's watch heritage, featuring compact proportions and clean lines that have made the original one of the most influential dive watches in Seiko history. The result is a watch that feels both vintage-inspired and thoroughly modern.
At 40mm, the case offers excellent wearability while retaining the rugged presence expected from a professional dive watch. The silver-white dial enhances legibility and gives the watch a distinctive appearance that stands apart from traditional black or blue divers.
Powered by the Seiko Calibre 6R55
Inside the HBC005J1 is Seiko's advanced Calibre 6R55 automatic movement. Designed for reliability and everyday practicality, the movement delivers an impressive power reserve of approximately 72 hours, allowing the watch to continue running for up to three days when fully wound. It also features manual winding capability and a stop-seconds function for precise time setting.
The movement's extended power reserve makes it particularly appealing for collectors who rotate between multiple watches while still requiring dependable performance.
Professional Dive Watch Capability
Built to Prospex standards, the HBC005J1 is designed for serious underwater performance. It features professional-grade 300-metre water resistance, a screw-down crown, screw case back and a unidirectional rotating bezel for measuring elapsed dive time. LumiBrite-coated hands, indexes and bezel markings ensure excellent visibility in low-light conditions both above and below the water.
A curved sapphire crystal with anti-reflective coating provides outstanding durability and clarity, while the stainless steel bracelet is fitted with a secure diver's clasp featuring a slide adjuster for enhanced comfort.
A Future Collectible
The HBC005J1 has already generated significant interest among Seiko enthusiasts thanks to its attractive anniversary colourway, heritage-inspired design and limited production run. Community discussions have highlighted the distinctive silver and blue combination as one of the strongest aspects of the release.
For collectors and diving enthusiasts alike, the HBC005J1 offers a compelling combination of heritage, exclusivity and everyday wearability.
Key Features
- Reference: HBC005J1
- Collection: Seiko Prospex
- Seiko 145th Anniversary Limited Edition
- Limited to 4,000 pieces worldwide
- Seiko Calibre 6R55 automatic movement
- Automatic and manual winding capability
- Approx. 72-hour power reserve
- 40mm stainless steel case
- Silver-white dial with blue accents
- Blue unidirectional rotating bezel
- Date display
- Curved sapphire crystal
- Anti-reflective coating on inner surface
- LumiBrite hands, markers and bezel
- Screw-down crown
- Stainless steel bracelet with diver's extension clasp
- 300m water resistance
- Magnetic resistance of 4,800 A/m
