SEIKO PROSPEX SEA HBB001K1 Seiko 145th Anniversary Limited Edition Limited edition of 9,999 pieces

In celebration of Seiko’s 145th anniversary,

Seiko Prospex introduces a limited-edition model with blue accents inspired by “Seiko Blue.”

In the second series of commemorative limited-edition watches celebrating Seiko’s 145th anniversary, a blue accent inspired by “Seiko Blue” is used. Established in the 1960s and refined over time, Seiko Blue continues to embody the Seiko brand identity.

Inspired by “Seiko Blue,” a signature color established in the 1960s and perfected over the decades, blue is adopted as an accent color for the bezel and seconds hand.

The combination of the two-tone bezel and a silver white dial creates a fresh and sophisticated impression on the wrist

.This model inherits a case design composed of straight, blade-like surfaces, while achieving a sharper and more compact form. With chamfering on the center links, the high-quality, solid bracelet delivers a refined finish that complements the case’s linear design.

Specifications

Movement

Caliber Number

4R35

Movement Type

Automatic with manual winding

Power reserve

Approx. 41 hours

Jewels

23

Functions

Stop second hand function

Date display

Case/Band

Case Material

Stainless steel

Case Size

Thickness:12.3mm

Diameter:41.7mm

Lug-to-lug:49.5mm

Crystal

Hardlex

LumiBrite

LumiBrite on hands, index(es) and bezel

Clasp

Three-fold clasp with secure lock , push button release with extender

Distance between lugs

20mm

Other Details

Water Resistance

200m / 660ft diver's

Magnetic Resistance

4,800 A/m

Weight

170.0g

Features

LIMITED EDITION on the case back

Unidirectional rotating bezel

Screw-down crown

Screw case back