scroll
SRPM09K1
SRPM09K1
New Limited Men's

SRPM09

5 Sports
Field series
March 2026 Release
HUF Limited Edition
Limited edition of 7,000 pieces

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.

Founded 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.

Based on the Seiko 5 Sports Field series with a “HUF Green” color.

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

Special case back

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.

This creation is presented in a special stainless steel box.
An original watch cloth is also included.

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
210.0
Distance between lugs
20

Other Details

Water Resistance
10 bar
Magnetic Resistance
4,800 A/m
Weight
146.0
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
  • In an actual product, the case back direction might be different from the photograph.