Seiko introduced the Prospex Diver PADI 60th Anniversary “King Turtle” HBB002 Limited Edition to mark a monumental milestone. This specific timepiece celebrates 60 years of operation for the Professional Association of Diving Instructors. The creation also honors 10 years of successful partnership between the Japanese watchmaker, Seiko, and the global diving organization.
Specification

The core concept of Seiko Prospex HBB002 builds upon a shared commitment to ocean conservation. Part of the proceeds from this timepiece support the global PADI Ocean Cleanup campaign directly. Designers drew inspiration from the official PADI 60th anniversary logo for the aesthetic presentation.
The overall design of the watch relies on one of the most recognizable silhouettes in watch history. Collectors instantly recognize the distinctive cushion-shaped case that gracefully resembles the silhouette of a turtle shell. This ergonomic shape allows the substantial timepiece to rest comfortably and securely on various wrist sizes.

The bold and distinctive case architecture measures exactly 45mm in diameter. It presents a wrist presence with a total thickness of 13.2mm. The lug-to-lug length of 47.7mm ensures a secure fit on the wrist. The case of this model showcases a brilliant mixture of finely brushed surfaces and highly polished steel accents.
A screw-down crown rests safely at the 4 position to prevent accidental underwater impacts during intense diving activities. A sapphire crystal protects the dial face from deep scratches during intense diving activities. The crystal features a distinct magnifying cyclops lens over the day and date window at 3 o’clock.

An anti-reflective coating is applied to the inner surface to eliminate glare underwater. Surrounding the crystal is a unidirectional rotating bezel with a blue ceramic insert. The watch boasts an impressive water resistance of 200 meters, meeting strict ISO standards for scuba diving.
The timepiece is delivered on a durable, 3-link stainless steel bracelet with brushed and polished finishes, as well as with push-button release, and a built-in diver extension. This allows the wearer to quickly expand the bracelet over a thick neoprene diving suit sleeve. To increase versatility, a second high-strength black silicone strap is conveniently included inside the special presentation box.
Dial

A main highlight of this timepiece is the striking color of the dial. The dial uses an intense, vivid shade of nautical blue that commands immediate visual attention. This bright blue base layer represents the deep ocean and mirrors the primary background of the association logo.
A subtle, intricate globe motif texture is beautifully stamped across the face of the dial. This detailed globe texture pays direct tribute to the official anniversary imagery of the training organization. It adds a wonderful layer of physical depth that catches light beautifully at different viewing angles.
Contrast is essential for underwater timekeeping, and this layout delivers exceptional legibility through smart color accents. The central seconds hand is finished in a bright red tone for immediate tracking. The iconic text reading Diver’s 200m at the 6 o’clock position is also printed in red.
These tiny red pops elegantly echo the signature colors found on the official diving organization logo. The large geometric hour markers are heavily filled with proprietary LumiBrite luminescent material. The hands and the zero marker on the bezel share this powerful, long-lasting green glow.
Movement

Seiko relies on the in-house automatic caliber 4R36 movement to power this robust diving instrument. The mechanical workhorse operates at a steady frequency of 21,600 vibrations per hour. It features 24 jewels and provides convenient hand-winding alongside hacking seconds functions.
The movement provides a reliable power reserve of approximately 41 hours when fully wound. Magnetic resistance up to 4,800 A/m protects the mechanism from common daily electronic interference.
This extraordinary model is strictly limited to just 8,000 pieces produced for the global market. Each individual piece features a unique serial number and the limited edition text engraved on the caseback.
Scheduled for a global release in July 2026, the Seiko Prospex HBB002 carries an official retail price of EUR 750. It represents an exceptional value proposition for collectors who appreciate genuine dive watch heritage and robust specifications. This commemorative timepiece perfectly captures the adventurous spirit of exploring the deep blue frontiers of our planet.
