Seiko Watches Prospex Sea HBB001

The Seiko Prospex Sea HBB001 Limited Edition brings together Seiko’s Japanese watchmaking heritage, modern dive-watch functionality, and a distinctive design created to commemorate the brand’s 145th anniversary. Limited to just 9,999 pieces worldwide, this automatic Prospex watch is designed for collectors and enthusiasts who appreciate authentic Seiko craftsmanship with a strong connection to the brand’s professional diving heritage.

At the heart of the HBB001 is Seiko’s Caliber 4R35 automatic movement with manual winding, providing approximately 41 hours of power reserve and a convenient date display. The movement also incorporates a stop-second function for precise time setting.

Its 41.7mm stainless-steel case features the sharp, architectural surfaces that define this Prospex design. Seiko describes the case as having straight, blade-like surfaces, while chamfered center bracelet links create a refined finish that complements the watch's angular construction. The silver-white dial is paired with a distinctive two-tone aluminum bezel, while blue accents on the bezel and seconds hand draw inspiration from Seiko Blue, a signature color established in the 1960s.

Built for serious water activities, the HBB001 provides 200 meters / 660 feet of diver's water resistance, a screw-down crown, screw case back, and a unidirectional rotating bezel. LumiBrite on the hands, indexes, and bezel enhances visibility in low-light conditions.

The stainless-steel bracelet features a three-fold clasp with secure lock, push-button release, and extender, providing practical adjustability for everyday comfort. At 12.3mm thick and 170g, the watch balances substantial Prospex presence with wearable proportions.

For collectors, the Seiko 145th Anniversary Limited Edition designation adds another layer of exclusivity, with “LIMITED EDITION” marked on the case back. Available from Lexor Miami, the HBB001 is a compelling choice for buyers seeking an authentic Seiko automatic diver with limited-edition appeal, Japanese heritage, and unmistakable Prospex character.

Key Features

• Seiko 145th Anniversary Limited Edition — limited to only 9,999 pieces worldwide.
• Automatic Caliber 4R35 movement with manual winding capability.
• Approximately 41-hour power reserve for dependable everyday wear.
• 200m / 660ft diver's water resistance for serious aquatic activities.
• 41.7mm stainless-steel case with distinctive angular, blade-like surfaces.
• Silver-white dial delivers a clean, sophisticated appearance with strong legibility.
• Two-tone aluminum unidirectional rotating bezel with blue and silver-tone detailing.
• Seiko Blue accents on the bezel and seconds hand commemorate Seiko's heritage.
• LumiBrite on hands, indexes, and bezel enhances visibility in low-light conditions.
• Solid stainless-steel bracelet with chamfered center links for a refined finish.
• Secure three-fold clasp with push-button release and extender for practical wearing comfort.
• Limited-edition case-back marking enhances the watch's collector appeal.

Technical Specifications

Own a piece of Seiko history. The Seiko Prospex Sea HBB001 combines automatic Japanese watchmaking, 200-meter diver's performance, distinctive Seiko Blue detailing, and the exclusivity of a 9,999-piece 145th Anniversary limited edition. Shop the Seiko Prospex HBB001 at Lexor Miami and add a collectible Prospex timepiece to your collection.