time-keeper


Seiko 5 Sports introduces a limited-edition collaboration model with HUF

February 2026


Seiko 5 Sports introduces a limited-edition collaboration model with HUF

Based on an archival Seiko model from the 1970s, affectionately known as the “Time Sonar,” this special timepiece has been reimagined with HUF’s unique style and finished with exclusive design elements.

F

ounded in 2002 by professional skateboarder Keith Hufnagel, HUF is a lifestyle brand rooted in the spirit of skateboarding and street culture.

Originally launched as a shop with a curated mix of brands, HUF evolved into a full-fledged label expressing its founder’s vision of skateboarding and street culture. Today, HUF has grown into a highly respected lifestyle brand, earning recognition across a wide range of fields.

Since its founding, HUF has advanced the innovative vision of Keith Hufnagel, consistently delivering a clean aesthetic, bold design, and high-quality craftsmanship.

The semi-transparent dial features the vibrant “HUF Green,” a color that symbolizes HUF’s philosophy.

This exclusive colorway did not exist on the original archival model, making it a unique expression created specifically for this collaboration.

Seiko 5 Sports introduces a limited-edition collaboration model with HUF

The ”huf” logo is placed at the 6 o’clock position on the dial.

The exhibition case back features the same “HUF Green” as the dial and is decorated with a graphic inspired by San Francisco, the city where HUF was founded.

As a mark of exclusivity, “Limited Edition” and an individual serial number are engraved on the case back.

TECHNICAL SPECIFICATIONS

Movement

  • Caliber Number 4R36

Movement Type

  • Automatic with manual winding

Power reserve

  • Approx. 41 hours

Jewels

  • 24

Functions

  • Stop second hand function
  • Day/Date display

Case/Band Case Material

  • Stainless steel

Case Size

  • Thickness:11.6mm
  • Diameter:39.4mm
  • Lug-to-lug:48.1mm

Crystal

  • Hardlex

LumiBrite

  • Lumibrite on hands and index(es)

Clasp

  • Three-fold clasp with push button release

Bracelet Length

  • 210.0mm

Distance between lugs

  • 20mm

Other Details Water Resistance

  • 10 bar

Magnetic Resistance

  • 4,800 A/m

Weight

  • 146.0g

Features

  • Limited Edition on the case back
  • Serial number engraved on the case back
  • Three-fold clasp with secure lock
  • See-through & Screw case back

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