Seiko Prospex Seigaiha-Inspired U.S. Special Edition SLA053

Prospex Seigaiha-Inspired U.S. Limited Edition. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate over 60 years of sports watch excellence with recreations and reinterpretations of landmark achievements. This U.S. Special Edition, available only in a limited edition of 500, with each caseback engraved to show the watch's position in a controlled-production run, celebrates the "seigaiha" or "blue ocean waves" pattern, deriving from an ancient Japanese tradition as a symbol of peace, good luck and good fortune. The intense blue dial and the deep black of the high-performance one-piece stainless steel case with black hard coating evoke the ocean under moonlight. Following ISO standards for saturation diving at depths of up to 300 meters, this exceptional timepiece is powered by a 26-jewel caliber 8L35 automatic movement, assembled expressly for diver's watches at the Shizukuishi Watch Studio, with the increased torque necessary for the most challenging dives. This mechanical movement beats at a frequency of 28,800 vibrations per hour, with a power reserve of approximately 50 hours, and offers manual winding capability. For enhanced legibility, the hands and markers feature LumiBrite coating, with LumiBrite accents on the black ceramic uni-directional elapsed timing bezel. With an anti-reflective sapphire crystal, date window and screwdown crown, this high-intensity timepiece includes a black silicone strap and is packaged in a special collectors' box. 300m Water Resistant

Technical Data

TYPE: Watch

MOVEMENT: Automatic

CALIBER: 8L35

DIAL COLOR: Blue

BAND: Silicone

STRAP MATERIAL: Black silicone strap

CASE THICKNESS: 15.4 mm

CASE MATERIAL: High-performance one-piece stainless steel case with black hard coating

CASE LENGTH: 50.0 mm

CASE SIZE: 44.3 mm

CRYSTAL TYPE: Sapphire crystal with anti-reflective coating on the inner surface

WATERPROOF: 300 meters (1 000 feet); follows ISO standards and is suitable for saturation diving

28 800 vibrations per hour

Power reserve: approximately 50 hours

26 jewels

Features

Limited edition of 500

Production serial number engraved on caseback

Production serial number engraved on caseback

Automatic Saturation Diver

LumiBrite hands and markers

Black ceramic uni-directional rotating elapsed timing bezel with LumiBrite accents

Automatic with manual winding capability

Screwdown crown

Packaged in a special collectors' box

Intense blue dial representing the ocean under moonlight in "Seigaiha" or "blue ocean waves" pattern symbolic of peace, good luck and good fortune