A Decade Of Partnership, One Exclusive GMT: Seiko Supercars SSK057K
Seiko expands its motorsport legacy with the release of the Seiko 5 Sports 2026 Supercars Limited Edition SSK057K, a bold new timepiece created to celebrate more than a decade of partnership with Australia’s premier touring car championship. Limited to just 1,500 pieces worldwide, this model marks an important milestone as the first GMT watch ever produced in collaboration with the Supercar Championship.
A Partnership Built on Performance
Since 2014, Seiko has been an official partner of the Supercars Championship and Team 18, sharing common values of precision engineering, reliability, and high performance. For the 2026 season, that partnership evolves with the introduction of a GMT complication—an especially fitting addition for a championship that spans six different time zones across Australia and New Zealand.

The GMT function allows the wearer to track a second time zone simultaneously, making it particularly practical for fans following the racing calendar across regions. Whether monitoring race weekends interstate or abroad, the SSK057K delivers added functionality wrapped in a distinctly racing-focused design.
Technical Specifications and Everyday Capability
At the heart of the SSK057K beats Seiko’s automatic Caliber 4R34, a proven mechanical movement offering GMT functionality with independent 24-hour hand adjustment. The movement delivers approximately 41 hours of power reserve and supports manual winding as well as a hacking seconds function for precise time-setting. The exhibition case back reveals the movement while also featuring special Supercars engravings and the individual limited edition number.

The stainless steel case follows the familiar proportions of the Seiko 5 Sports GMT line, measuring approximately 42.50 mm in diameter, 13.60 mm in thickness, and around 46 mm lug-to-lug. It offers 100 meters of water resistance for everyday durability, while Hardlex crystal protects the dial.
Enhancing its travel-ready functionality is a bi-color 24-hour bezel in black and gray, which can be used to track a third time zone when combined with the GMT hand.
Racing-Inspired Design Details
The SSK057K’s design is directly influenced by motorsport aesthetics. A carbon fiber patterned dial immediately references high-performance automotive materials, reinforcing the connection to the racetrack. Red accents energize the inner chapter ring, GMT hand, and seconds hand, echoing the intensity of pit lane action and on-track competition.

The black leather strap continues the theme, featuring the same carbon fiber pattern as the dial. Red stitching and a red lining add further contrast, tying the entire design together with subtle but purposeful detailing. The Supercars logo is integrated into the dial design, while additional branding is engraved on both the crown and the case back—details that highlight the watch’s official championship status and exclusivity.
Limited Edition Collector’s Package
Exclusivity is central to this release. The SSK057K is limited to just 1,500 individually numbered pieces worldwide. Each watch is delivered in a specially designed collector’s box and accompanied by an official Seiko Supercars pin, a personalized cleaning cloth, and an individually numbered certificate detailing all Supercars race tracks.

Priced at AUD 850, the 2026 Supercars Limited Edition SSK057K blends mechanical reliability, practical GMT functionality, and authentic motorsport design into a highly collectible package.
With this release, Seiko once again demonstrates its ability to merge performance-driven watchmaking with the adrenaline and engineering spirit of competitive racing—this time adding expanded time-zone capability to match a championship that spans an entire continent.
Read more here.
General Specifications:
Brand: Seiko
Model: 5 Sports 2026 Supercars Limited Edition
Reference: SSK057
Dial: Black with a carbon fiber pattern
Case Material: Stainless steel
Case Dimensions: 42.50 mm Diameter, 13.60 mm thickness, 46 mm lug-to-lug
Crystal: Hardlex glass
Case Back: See through
Water Resistance: 100 Meters
Strap: Black calfskin leather strap with carbon fiber pattern and a steel pin buckle
Caliber: 4R34
Functions: Hours, minutes, seconds, date, gmt
Winding: Automatic
Frequency: 3 Hz (21,600 Vph)
Jewels: 24
Power Reserve: 41 Hours
Price: AUD 850
Limited Edition: Yes, 1,500 pieces
Availability: Now













































