Notebookcheck Logo

New King Seiko limited-edition automatic watch launches with Caliber 6L35 movement

The King Seiko x Beams SDKA025 watch, pictured against a styilzed yellow-orange background. (Image source: PR Times JP)
The King Seiko x Beams SDKA025 watch, pictured against a styilzed yellow-orange background. (Image source: PR Times JP)
Seiko has partnered with Beams for the new King Seiko SDKA025, a 300-piece limited edition watch which celebrates the retailer's 50th anniversary. The model uses the slim 6L35 caliber and a black dial with golden accents. It will retail for 440,000 JPY (~$2,774) in Feb 2026.

In a brand-new collaboration with Beams, Seiko has announced a King Seiko watch with a black dial, reference SDKA025. This will be a new limited-edition piece to commemorate Beams' 50th Anniversary. The clothing brand, which was established in 1976, is based out of Tokyo.

The design direction of the SDKA025 is mostly about its black dial, which features a stamped radial pattern to resemble rays of light. This textured surface has gold-toned hands and markers, including pyramid-cut indices that provide a high-contrast, multi-faceted reflection. The stainless steel case has the sharp, "KSK" geometry (referring to the 1965 King Seiko KSK).

The SDKA025 is powered by the Caliber 6L35, which Seiko identifies as its thinnest current automatic movement. While the movement's slimness is essential for achieving the watch's 10.7 mm height, its performance metrics get you a different trade-off compared to the 6R series seen in other recent Presage releases. The 6L35 operates at a frequency of 28,800 vibrations per hour, alongside a more modest power reserve of 45 hours.

The price tag for the SDKA025 is, however, premium - with a retail price of 440,000 JPY (~$2,774) including tax. The package includes exclusive Beams branding on the case back, with a custom-branded box and a dedicated travel case. Given the limited volume of 300 pieces and a huge domestic following for both brands, this release will attract mostly Japanese collectors, since plans of a global release are almost non-existent.

Buy the Seiko Presage SRPB41 on Amazon.

(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
(Image source: @plus9time on Instagram)
Please share our article, every link counts!
Mail Logo
Google Logo Add as a preferred
source on Google
static version load dynamic
Loading Comments
Comment on this article
> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 01 > New King Seiko limited-edition automatic watch launches with Caliber 6L35 movement
Anubhav Sharma, 2026-01-15 (Update: 2026-01-15)