Seiko Prospex Asia-Pacific Limited Edition Automatic Watch HBB003K1, HBB003

Seiko Prospex Asia-Pacific Limited Edition Automatic Watch HBB003K1, HBB003

The Seiko Prospex HBB003 is a 2026 Asia‑Pacific Limited Edition diver’s watch, limited to 2,500 pieces, designed for enthusiasts who demand reliability, performance, and distinctive style. Powered by the automatic Caliber 4R35 with manual winding, it offers a power reserve of approximately 41 hours, 23 jewels, and a stop‑seconds function with date display for practical everyday use.

The stainless‑steel case measures 41.7 mm in diameter, 12.3 mm in thickness, and 49.5 mm lug‑to‑lug, delivering a balanced wrist presence suitable for both diving and daily wear. A Hardlex crystal and LumiBrite on hands, indexes, and bezel ensure durability and excellent legibility in low‑light underwater conditions.

Built as a true tool watch, the HBB003 features 200 m water resistance, making it suitable for air diving, along with 4,800 A/m magnetic resistance and a solid 170 g weight that conveys quality and robustness. The watch is fitted with a 20 mm lug width and an extension clasp with push‑button release for secure, comfortable wear over a wetsuit.

Movement

• Caliber: 4R35

• Movement Type: Automatic with manual winding

• Power Reserve: Approx. 41 hours

Exterior

• Case Material: Stainless Steel

• Glass Material: Hardlex

• Clasp Type: Three-fold clasp with secure lock, push button release with extender

• LumiBrite: On hands, indexes, and bezel

Case Size

• Diameter: 41.7 mm

• Thickness: 12.3 mm

• Lug-to-lug: —

• Distance Between Lugs: —

Water Resistance

• 200 m / 660 ft diver’s

Weight

• 170 g

Other Specifications

• Date display

• Stop second hand function

Features

• Serial number engraved on the case back

• LIMITED EDITION on the case back

• Screw-down crown

• Unidirectional rotating bezel

• Screw case back

=== 1 Year Seller's Warranty ===