Seiko Prospex Sea HBB004K Limited Edition Automatic Diver’s Watch

Seiko Prospex Sea HBB004K Limited Edition Automatic Diver’s Watch

3 Year Manufactures Warranty

Bold, highly capable and produced in strictly limited numbers, the Seiko Prospex HBB004K is a professional-inspired automatic diver’s watch from Seiko’s renowned Prospex Sea collection.

Created as an Asia Exclusive Limited Edition, the HBB004K is restricted to just 2,500 individually numbered pieces, making it an exciting addition for Seiko enthusiasts, collectors and anyone looking for a distinctive mechanical dive watch.

The standout feature is its striking orange dial, which gives the watch a vibrant sporting character while providing excellent contrast against the hands and hour markers. Seiko’s LumiBrite is applied to the hands and markers to improve visibility in dark and low-light environments.

Powering the watch is Seiko’s proven Calibre 4R35 automatic movement. Driven by the movement of the wearer, this mechanical calibre provides approximately 41 hours of power reserve and also offers hand-winding capability.

Built with diving in mind, the HBB004K features a robust 41.7mm stainless steel case paired with a matching stainless steel bracelet. A one-way rotating bezel provides a practical elapsed-time scale, while the screw-down crown helps maintain the watch’s Diver’s 200 metre water resistance.

The dial is protected by durable Hardlex glass, while a date display adds everyday practicality without taking away from the clean, functional diver aesthetic.

At 41.7mm in diameter and 12.3mm thick, the HBB004K delivers the substantial presence expected from a Prospex diver while remaining versatile enough for regular wear.

Each HBB004K is presented in a special Limited Edition box, reinforcing the collectable nature of this Asia-exclusive Seiko Prospex release.

Key Specifications

• Brand: Seiko
• Collection: Prospex
• Series: Sea
• Model: HBB004K
• Edition: Asia Exclusive Limited Edition
• Production: Limited to 2,500 individually numbered pieces
• Gender: Men's
• Movement: Automatic mechanical
• Calibre: Seiko 4R35
• Display: Analogue
• Functions: Hour, minute, seconds and date
• Power Reserve: Approximately 41 hours
• Hand Winding: Yes
• Case Material: Stainless steel
• Case Colour: Silver
• Case Diameter: 41.7mm
• Case Thickness: 12.3mm
• Case Length: 49.5mm
• Lug Width: 20mm
• Weight: Approximately 170g
• Dial Colour: Orange
• Glass: Hardlex
• Bracelet: Stainless steel bracelet
• Bracelet Colour: Silver
• Crown: Screw-down
• Bezel: One-way rotating bezel
• Bezel Function: Elapsed-time / diving timer
• Water Resistance: Diver’s 200 metres
• LumiBrite: Hands and hour markers
• Calendar: Date display
• Special Packaging: Limited Edition presentation box
• Individual Numbering: Yes