SEIKO Prospex “Seigaiha” U.S. Special Editions (references SLA053 and SLA059)

Seiko Watch of America has recently announced two amazing U.S. special edition Prospex professional diving watches with eye-catching dials highlighting the ancient “Seigaiha” pattern.

Exclusively available in the U.S. market, these diving watches from the Prospex collection combine the finest dive watch technology with centuries of tradition and craftsmanship.

Seigaiha is an ancient Japanese decorative motif in which layered concentric circles form an arched wave pattern. The two new watches, with their Seigaiha-patterned dials in vivid blue (SLA053) or deep burgundy (SLA059), add another rich element of symbolism in evoking the role of the moon in both the Shinto and Zen Buddhist traditions. The blue represents the ocean waves under moonlight and the burgundy, the first rays of sun brightening the dark seas at dawn.

Seiko Prospex Seigaiha U.S. Limited Edition, reference SLA053
Seiko Prospex Seigaiha U.S. Limited Edition, reference SLA053

These watches house Seiko’s proprietary 8L35 movement. The 26-jewel automatic 8L35, beating at a frequency of 28,800 vibrations per hour, provides a power reserve of approximately 50 hours and boasts manual winding capability.

Each Seigaiha U.S. Special Edition is crafted to perform flawlessly in the roughest seas. The monobloc stainless steel case ensures water resistance to a depth of 300 meters, following ISO standards for saturation diving. The black ceramic unidirectional elapsed timing bezels and screw-down crowns provide added security on deep dives, while LumiBrite coated hands, markers, bezel accents, and anti-reflective sapphire crystals enhance legibility.

The blue dial version, with black hard-coated case and black silicone strap, will be available only in a controlled-production run of 500, with the serial number engraved on each caseback, while the burgundy dial variation features a super-hard coated stainless steel bracelet with tri-fold push-button release clasp and slide adjuster, as well as an additional black silicone strap.

Both timepieces will be packaged in special collectors’ boxes, including a unique explanatory scroll and the unique gift of coordinating Seigaiha-pattern cufflinks.

The Seiko Prospex “Seigaiha” Limited Edition SLA053 ($3,200, limited edition of 500) is available from August 2021, with Special Edition SLA059 ($3,300) following in November 2021, both exclusively in the U.S. market.

Technical details

Model: Seiko Prospex Seigaiha U.S. Limited Edition, reference SLA053

Seiko Prospex Seigaiha U.S. Limited Edition, reference SLA053

Movement
Caliber 8L35
Automatic with manual winding capability
28,800 vibrations per hour
Power reserve: approximately 50 hours
26 jewels

Case
High-performance one-piece stainless steel case with black hard coating
Case dimensions: Thickness – 15.4mm; Diameter – 44.3mm; Length – 50.0mm
Black ceramic uni-directional rotating elapsed timing bezel with LumiBrite accents
Sapphire crystal with anti-reflective coating on the inner surface
Screw-down crown
Production serial number engraved on caseback
Water resistance: Diver’s Watch 300 meters (1,000 feet). Follows ISO standards and is suitable for saturation diving

Dial
Intense blue dial representing the ocean under moonlight in “Seigaiha” or “blue ocean waves” pattern symbolic of peace, good luck and good fortune
Date calendar
LumiBrite hands and markers

Strap
Black silicone strap

Packaging
Packaged in a special collectors’ box with coordinating Seigaiha-pattern cufflinks

Edition
Limited Edition of 500 pieces

Retail price
$3,200

Model: Seiko Prospex Seigaiha U.S. Special Edition, reference SLA053

Movement
Caliber 8L35
Automatic with manual winding capability
28,800 vibrations per hour
Power reserve: approximately 50 hours
26 jewels

Case
High-performance one-piece stainless steel case with super-hard coating
Thickness – 15.4mm; Diameter – 44.3mm; Length – 50.0mm
Black ceramic uni-directional rotating elapsed timing bezel with LumiBrite accents
Sapphire crystal with anti-reflective coating on the inner surface
Screw-down crown
Water resistance: Diver’s Watch 300 meters (1,000 feet). Follows ISO standards and is suitable for saturation diving.

Dial
Rich burgundy dial representing the sea at daybreak in “Seigaiha” or “blue ocean waves” pattern, symbolic of peace, good luck and good fortune
Date calendar
LumiBrite hands and markers

Bracelet
Stainless steel bracelet with super-hard coating
Tri-fold push button release clasp with slide adjuster
Additional black silicone strap

Packaging
Packaged in a special collectors’ box with coordinating Seigaiha-pattern cufflink

Retail price
$3,300