This variant is unique and pops out beautifully on the wrist. The dial is coded "JAPAN 6139 -7040T" and comes with a beautiful Champagne-colored dial. Looking deeper into the other dial elements, the "SpeedTimer" logo sits prominently mid-dial opposite the blacked-out day/date frame. The bracelet comes with a flat three-link design coded XJA161 that's tapered to attach under the lugs seamlessly.

This particular one is our personal favorite. Coded "JAPAN 6139 -7050T", it comes with a split bi-colour minute sub-register in black and electric blue with vibrant orange chronograph hands. Interestingly, it comes with a very beautiful triple hinge “Chiclet” Bracelet in Stainless Steel coded XGA141 which was only made for this variant.

As part of Seiko’s early automatic chronograph lineage, the 6139 - 7020 holds a special place in horological history. Its blend of functionality, precision, and vintage charm makes it a sought-after model among collectors and enthusiasts alike.