Launched in March 2023, the Seiko 5 Sports 55th Anniversary Customize Campaign Limited Edition is comprised of four models selected from the 2022 “Show Your Love for Seiko 5 Sports Customize your watch”.
The above motioned campaign encouraged users to create and submit their own original Seiko 5 Sports watch by combining various components on the website. Seiko has created four SKX Sports Style references based on the most liked designs.

The first model from the Seiko 5 Sports 55th Anniversary Customize Campaign Limited Edition is SRPK03K1, a monochromatic silver-colored watch with a red seconds hand. It was inspired by an archival model from the 1960s.

The second one (SRPK05K1)’s bezel evokes the design of a 5 Sports archival model. The hour hand, minute hand, and indexes have classic gold coloring, and the orange seconds hand provides a vibrant accent.

The third watch (SRPK07K1) incorporates the bezel design of an original model from the archives. The orange dial and red seconds hand are a striking pairing.

The fourth model (SRPK08K1) features pink gold toned case, dial, and bracelet. It has a deep red bezel.
All the four references feature 42.5mm diameter cases. The movement is Seiko 4R36 Automatic Calibre with 41 hour power reserve and day-date display.
To commemorate the 55th anniversary of Seiko 5 Sports collection, the back cover of each watch is specially designed with the words “55th ANNIVERSARY SEIKO 5 SPORTS” and the serial number.
Each reference is limited to 1,968 pieces, as a node to the launching year of Seiko 5 Sports.
Technical details
Model: Seiko 5 Sports 55th Anniversary Customize Campaign Limited Edition
Style: SKX Sports
References SRPK03K1, SRPK05K1, SRPK07K1 and SRPK08K1
Movement
Caliber 4R36
Automatic with manual winding
Power reserve: Approx. 41 hours
Jewels: 24
Stop second hand function
Day/Date display
Case
Stainless steel case (SRPK03, SRPK05, SRPK07)
Rose-gold toned stainless steel case (SRPK08)
Thickness: 13.4mm
Diameter: 42.5mm
Lug-to-lug: 46.0mm
Distance between lugs: 22mm
Crystal: Hardlex
See-through & Screw case back
LIMITED EDITION text and Serial number engraved on the case back
Water resistance: 10 bar
Bezel
SRPK03: Steel bezel with black markers
SRPK05: Black bezel with white digits and markers
SRPK07: Black bezel with white and red digits and markers
SRPK08: Red bezel with white digits and markers
Dial
SRPK03: Silver-toned dial
SRPK05: Black dial
SRPK07: Orange dial
SRPK08: Gold-toned dial
Day and date window at 3 o’clock
LumiBrite on hands, indexes and bezel
Bracelet
Stainless steel bracelet
Three-fold clasp with secure lock
Edition
Each model is limited to 1,968 pieces