Seiko's third iteration of a "world time" design came in the form of the 6400. It was available in a few differing color ways, and for us, the crisp white linen is the perfect blend of its history and progression. The dial is a silvery bright white with subtle linen texture, and a slick lacquer finish. At its edge is a black 24 hour track that can be used in conjunction with the "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 inner bezel. This example from May of ‘72 is completely original aside from a replacement crystal. It’s unpolished with crisp corners, and still attached to the original “Railroad” style bracelet. The hacking 6117B is a workhorse movement built to last, and is keeping near perfect time post service. A Seiko classic that’s sure to be a fast favorite in any collection.

Original Seiko “Railroad” Bracelet in Stainless Steel

Serviced 9/2/18

Diameter 41mm

Lugs 20mm