Seiko's third iteration of a "world time" design came in the form of the 6400. It was available in a handful of color ways, but for us, the black and orange variant is certainly the list topper. The dial is a rich charcoal black with a linen texture, and a crisp lacquer finish. At its edge is a pumpkin orange 24 hour track that can be used in conjunction with the black and orange "cities of the world" inner bezel to determine the time anywhere in the world at a glance. The hands and applied markers are brightly polished aside from the bold red of the contoured GMT hand. The case offers great vintage appeal through its tonneau style architecture and large 41mm diameter. The crown is set flush against the case, and in the neutral position can be turned in either direction to rotate the “cities” bezel. This early “Proof” example from January of 1970 is unpolished and completely original aside from a replacement crystal. The 6117B driving the hands is a true workhorse that’s built to last, offers hacking seconds, and is keeping near perfect time post service. In keeping with its airborne association, we’ve paired it with a coordinated premium “Paratrooper” nylon strap in gray with orange and black striping for a cool and comfortable finish. Dripping in colorful and functional vintage appeal, it’s bound to be a fast favorite wherever it lands.

CNS Gray with Orange/Black Stripe Paratrooper Strap

Serviced 11/6/21

Diameter- 41mm

Lugs- 20mm