Seiko Prospex Sea 145th Anniversary LE Automatic SS 40 MM White Dial Watch HBC005J1

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.

“Seiko Blue,” a signature color established in the 1960s and perfected over the decades, inspires the watch’s blue bezel insert and seconds hand.

The case design, inspired by Japan’s first diver’s watch from 1965, embodies a compact, sophisticated, and iconic style. The combination of blue bezel and a silver white dial creates a fresh and sophisticated impression on the wrist.

Movement

Caliber Number

6R55

Movement Type

Automatic with manual winding

Precision

+25 to -15 seconds per day

Power reserve

Approx. 72 hours(3 days)

Jewels

24

Functions

Stop second hand function

Case/Band

Case Material

Stainless steel

Case Size

Thickness:13.0mm

Diameter:40.0mm

Lug-to-lug:46.4mm

Crystal

Curved sapphire crystal

Crystal Coating

Anti-reflective coating on inner surface

LumiBrite

LumiBrite on hands, index(es) and bezel

Clasp

Three-fold clasp with secure lock & push button release, solid & slide adjuster

Distance between lugs

20

Other Details

Water Resistance

300m / 1000ft diver's

Magnetic Resistance

4,800 A/m

Features

LIMITED EDITION on the case back

Unidirectional rotating bezel

Screw-down crown

Screw case back