Seiko 5 Sports Field HUF Limited Edition SBSA323 Automatic Green Semi-Transparent Dial Stainless Steel Men’s Watch

The Seiko SBSA323 is a limited-edition collaboration between Seiko 5 Sports and HUF, the renowned skateboarding and streetwear brand founded by Keith Hufnagel. Inspired by Seiko's iconic 1970s Time Sonar, this special edition reinterprets the vintage design with a contemporary HUF Green semi-transparent dial, allowing a subtle glimpse of the day-date mechanism beneath. The dial is finished with applied hour markers, LumiBrite hands and indexes, and the HUF logo at 6 o'clock, creating a unique blend of heritage and modern street culture. It is limited to 7,000 pieces worldwide, with 1,000 pieces allocated to Japan.

The watch is based on the Seiko 5 Sports Field Series, featuring a 39.4mm stainless steel case with a slim 11.6mm thickness and 48.1mm lug-to-lug measurement for excellent everyday wearability. A Hardlex crystal protects the dial, while the exhibition screw-down caseback is finished in matching translucent HUF Green and decorated with a line-art map of San Francisco. Each watch is individually numbered and presented in a special HUF-branded stainless steel presentation box with an exclusive cleaning cloth.

Powering the SBSA323 is Seiko's trusted Caliber 4R36 automatic movement, equipped with 24 jewels, manual winding, and hacking seconds for precise time setting. The movement delivers approximately 41 hours of power reserve and features both day and date displays at 3 o'clock. Renowned for its durability and reliability, the 4R36 remains one of Seiko's most proven automatic calibers for everyday wear.

The SBSA323 is one of the most collectible recent Seiko 5 Sports releases, combining the cult appeal of the vintage Time Sonar with HUF's signature design language. Its translucent green dial, exclusive packaging, individually numbered caseback, and limited production make it highly desirable among Seiko collectors and fans of streetwear collaborations alike.